The table shows the number of protons, neutrons and electrons in some atoms and ions. Complete the table. Jawabb plss dikumpulin sebentar lagi nihhh
1. The table shows the number of protons, neutrons and electrons in some atoms and ions. Complete the table. Jawabb plss dikumpulin sebentar lagi nihhh
Jawaban:
Li = 3 4 3
S = 16 16 18
K = 19 22 18
2. which of the atoms and ions 1) to 4) has a different electron configuration from those of the others? 1) F- 2) Ne 3) Na+ 4) Ar
F- : [He] 2s2 2p6
Ne : [He] 2s2 2p6
Na+ : [He] 2s2 2p6
Ar : [Ne] 3s2 3p6
So, the answer must be (4) Ar -> (D)
3. Choose the A. CFC contains 3 elements and 4 atomsB. CFC contains total 6 atomsC. CFC contains 5 elements and 3 atomsD. CFC contains 3 elements and 5 atoms
Pertanyaan?
Choose the ?
Jawaban:CFC merupakan singkatan dari CLORO FLUORO CARBON . CFC berbentuk gas dan mempunyai sifat sebagai berikut yaitu : Tidak berbau, tidak berasa, dan tidak mudah bereaksi. CFC dimanfaatkan manusia untuk keperluan sehari-hari seperti hair spray, parfum semprot, lemari es dan AC.
Walaupun tidak berbahaya secara langsung, CFC memberikan dampak yang sangat besar sekali. CFC yang dikeluarkan akan langsung terbang ke lapisan stratosfer dan kemudian akan langsung bereaksi dengan Ozon (O3). Dengan demikian sedikit demi sedikit, lapisan ozon akan berlubang. Kita tahu bahwa lapisan ozon merupakan pelindung bumi yang mencegah masuknya sinar ultraviolet matahari.
Kalau lapisan ozon berlubang apa yang terjadi.. Ya, Sinar ultraviolet akan masuk ke bumi dan bisa dibayangkan seperti apa akibatnya.
Pembahasan!!!~◇ciri-ciricfc◇~CFC (Freon) terdiri dari klor (Cl), fluor (F), dan karbon (C).Sifat tidak beracun, tidak dapat dibakar dan sangat stabil (tidak mudah bereaksi).CFC digunakan sebagai bahan pendingin kulkas dan AC (air conditioner) baik di rumah maupun pada kendaraan.5 contoh benda yang mengandung gas CFC (Chloro flouro carbon)Kulkas.Air Conditioner.Parfum.Benda elektronik.Pembersih (Pledge)SEMOGATERBANTUATASJAWABANSAYA4. what number of Fe atoms and what amount (moles) of Fe atoms are in 500.0 g of iron
STOICHIOMETRY :
It is known that the mass of Fe (Iron) we have is 500.0g and if we open the periodic table, it is also told that the relative atomic mass (Ar) is equal to approximately 56. So in this case we can find the mole of the iron with :
[tex]n = \frac{m}{Ar/Mr}[/tex]
Where :
n = mole
Ar/Mr = Relative Atomic Mass / Relative Molecular Mass
m = mass
So..
[tex]n = \frac{500}{56} = 8.92 ≈ 9 moles[/tex]
So the answer is 8,92 moles of Fe or approximately 9 moles of Fe
Hope it helps, Shalom!
5. mengapakah atom V dan atom X adalah isotop Why V atom and C atom are isotopes?
Atom V dan atom X merupakan isotop karena atom V dan atom X berasal dari unsur yang sama, unsur M dan seharusnya memiliki jumlah proton yang sama pada inti atom. Selain itu, pada soal sudah jelas tertera bahwa atom X dan atom V adalah "pasangan isotop".
Penjelasan dengan langkah-langkahIsotop merupakan atom-atom dengan jumlah proton yang sama di dalam inti atom, tetapi memiliki perbedaan pada jumlah neutron. Hal ini menyebabkan nilai massa atom relatif dari pasangan isotop berbeda. Pada soal dapat melalui diagram spektrum massa (mass spectrum) terlihat bahwa atom V memiliki Ar (atomic relative mass) sebesar 35 gram/mol dan atom X memiliki Ar sebesar 37 gram/mol.
Dari data pada grafik dapat dihitung nilai massa atom relatif rata - rata dari unsur M. Berikut adalah persamaan perhitungan Ar M:
[tex]\sf Ar~M = Ar~V \times \% V +Ar~X\times \% X[/tex]
Keterangan:
Ar = massa atom relatif, g/mol atau sma (satuan massa atom).% = persentase kelimpahan.Diketahui:
%V = 75%.Ar V = 35 sma.%X = 25%.
Ar X = 37 sma.
Ditanyakan:
Ar M = ?Penyelesaian:
[tex]\begin{array}{ll} \sf Ar~M &\sf = Ar~V \times \% V +Ar~X \times \% X\\\\\sf &\sf = 35\times 0.75 + 37\times 0.25\\\\&\sf = 35.5~sma.\end{array}[/tex]
Kalau dicek ke tabel periodik unsur, atom dengan Ar sama dengan 35.5 gram/mol atau 35.5 sma adalah atom klorin (Cl). Jumlah proton dari atom Cl sama dengan nomor atom Cl, yaitu 17. Maka, atom V dan atom X merupakan pasangan isotop dari atom Cl.
Pelajari lebih lanjutMateri tentang kestabilan unsur dengan nomor atom < 83:
https://brainly.co.id/tugas/42244105Materi tentang perhitungan umur batu bara:
https://brainly.co.id/tugas/51468454Materi tentang contoh unsur radioaktif:
https://brainly.co.id/tugas/16932555
______________
Detail jawabanKelas : XII
Mapel : Kimia
Bab : 4 - Radioaktif
Kode : 12.7.4
6. 2 a 69 31Ga and 71 31Ga are isotopes of gallium.With reference to this example, explain what youunderstand by the term isotope.b A sample of gallium contains 60% of atoms of69 31Ga and 40% of atoms of 71 31Ga. Calculate therelative atomic mass of this sample of gallium.pls help meee!!!!
Jawaban:
2 a 69 31Ga dan 71 31Ga adalah isotop galium.
Dengan mengacu pada contoh ini, jelaskan apa yang Anda
mengerti dengan istilah isotop.
b Sampel galium mengandung 60% atom
69 31Ga dan 40% atom dari 71 31Ga. Hitung
massa atom relatif sampel galium ini.
7. Write the Lewis dot symbol for magnesium and chlorine atoms.
Jawaban:
mg forms ionic bond to Cl by donating its valence electrons to two Cl atoms . The electron configuration of Mg is [Ne]3s². It can achieve a complete octet by losing its components
8. A compound contains one atom of calcium, two atoms of hydrogen and two atoms of oxygen. What is the correct chemical formula of the compound?
Jawaban:
Ca(OH)2
maaf kalau salah
9. past tense exercise worksheet and
1. I …………………… a strange dream last A. night.
B. have
C. had
2. The people …………………….. at the
A. bull thief.
B. yelled
C. have yelled
D. had yelled
3. The young man …………………. his own life to save the life of his friend.
A. was risking
B. risked
C. had risked
4. I myself …………………… this.
A. see
B. had seen
C. saw
5. He …………………. gently to the child.
A. spoke
B. had spoken
C. have spoken
6. The children …………………. their best.
A. tried
B. were trying
C. try
7. The two men ………………….. ready to
leave on their pilgrimage.
A. are
B. were
C. had been
8. He ………………… at the entrance hesitantly.
A. stand
B. stood
C. had stood
9. Their families ……………….. them to prepare for the journey.
A. were helping
B. helped
C. had helped
10. Kabir ………………… the value of devotion and humility.
A. teaching
B. taught
C. had caught
11. The children …………………. and ………………….
A. were singing, dancing
B. sang, danced
C. had sung, danced
12. She ………………………… a letter to her grandmother.
A. wrote
B. had written
C. have written
Jawaban
1. I had a strange dream last night.
2. The people yelled at the bull thief.
3. The young man risked his own life to save the life of his friend.
4. I myself saw this.
5. He spoke gently to the child.
6. The children tried their best.
7. The two men were ready to leave on their pilgrimage.
8. He stood at the entrance hesitantly.
9. Their families helped them to prepare for the journey.
10. Kabir taught the value of devotion and humility.
11. The children sang and danced.
12. She wrote a letter to her grandmother.
10. english worksheet connectors and, or, but
no, really,sorry if wrongjawabnnya adalah no,really,sorry if wrong
11. pada saat membuat worksheet baru,worksheet baru tersebut akan muncul di...worksheet yang sudah ada lebih dahulu.
Jawaban:
tab sheet
Penjelasan:
yang ada dibawah
12. ASKING AND GIVING OPINION WORK WORKSHEET
Jawaban:
ga bisa bahasa Inggris;(
Penjelasan:
:(
TranslationEng»Id:
"Lembar Kerja Yang Meminta dan Memberi Pendapat".
13. An atom of an element has 10 protons and 12 neutrons, while an atom of B element has 23 of mass number and 11 of atomic number. Explain both atoms can be grouped into isotopes, isobars, or isotones!
Jawaban:
isoton
same neutrons = 12
Penjelasan:
elemen A
protons = 10
neutrons = 12
so
no. mass = protons + neutrons = 10+12= 22
no. atom = protons = 10
elektron = protons = 10
neutrons = 12
elemen B
no. mass = 23
no. atom = 11
elektrons = no. atom = 11
protons = no. atom = 11
neutrons = no. mass - no. atom = 23-11 = 12
so, the explanation
elemen A and elemen B can be grouped into isotones
because have same proton = 12
14. Choose the below! A. CFC contains 3 elements and 4 atoms B. CFC contains total 6 atoms C. CFC contains 5 elements and 3 atoms D. CFC contains 3 elements and 5 atom
Jawaban:
Jawabannya adalah A.
Penjelasan:
Klorofluorokarbon (CFC) adalah suatu senyawa organik yang hanya mengandung karbon, klorin, dan fluorin, yang diproduksi sebagai derivat volatil dari metana, etana, dan propana.
15. WORKSHEET PAST TENSE 1 (REGULAR AND IRREGULAR VERB)
Jawaban:
Rumus = Verb + Ing
1. Waiting
2. Inviting
3. don't live
4. Did, like
5. don't visit
6. Did, dance
7. is stop
8. did not water
9. did not study
10. raining
Semoga Membantu!
16. Grammar worksheet too and enough with adjectives and their opposites..?Tolong bantu!?
2. slow
3. old
4. expensive
5. interesting
6. noisy
7. easy
8. dangerous
9. large
10. dark
11. long
12. dirty
13. healthy
14. heavy
15. near
17. bromine has 2 types of atoms: 79/35 Br and 81/35 Br. What is the difference between the 2 atoms?
Jawaban:
There are isotopes
Penjelasan:
isotopes are atoms that have the same number of protons and electrons but different numbers of neutrons anda the are have different physical properties
79/35 Br = number of e- 35 , protons 35 , and neutron 44
81/35 Br = number of e- 35 , protons 35 , and neutron 46
Regards
IG @instakimiaSMA
18. make 10 words that end in the letters ions, for and ness! artinya:buatlah 10 masing-masing kalimat yang berakhiran huruf ions, for dan ness! contohnya expressions, sorry for dan forgiveness*jawabannya selain contoh ya;)
Alterations Confessions Conclusions Conventions Corruptions Definitions
Complexions Conceptions Evacuations Evaluations
Kindliness Greediness Happiness Hardness Hungriness Quickness Greatness Goodness Weakness Witness
Therefor Cared-for Hoped-for Looked-for Die-for Wished-for What-for Yearned for Compete-for Unwished -or
19. Atoms and molecules are both particles. Explain the difference between an atom and a molecule.
An atom is smallest particle in an element that has the properties of the element. It is not possible to breakdown the atom further retaining the properties of the element. Atoms are not visible to the naked eye and are the basic building blocks. For example the atoms of element gold cannot be broken down further and each atom has the properties of gold.
Molecules are formed by the combination of two or more atoms. Unlike atoms, molecules can be subdivided to individual atoms. The atoms are bonded together in a molecule. Molecules also are not visible to the naked eye, while can be seen through highly magnifying microscopes and other scientific devices. Water is comprised of numerous water molecules. Each water molecule is made up of one oxygen atom and two hydrogen atoms. So a water molecule can be further divided into oxygen and hydrogen atoms. But these atoms cannot be subdivided. In a molecule, atoms are bonded together by single, double, or triple bonds.
An atom is the smallest particle in an element that has the properties of the element. This atomic damage is not possible to continue to maintain the properties of the elements. The atom is not visible to the naked eye and is a basic building block. For example, the elemental gold atom cannot be broken down further and each atom has the properties of gold. Molecules formed by a combination of two or more atoms. Unlike atoms, molecules can be divided into individual atoms. Atoms are bonded together in a molecule.
Molecules are also not visible to the naked eye, while they can be seen through high magnification microscopes and other scientific devices. This water consists of various water molecules.
Each water molecule consists of one oxygen atom and two hydrogen atoms. So a water molecule can be subdivided into oxygen and hydrogen atoms. But these atoms cannot be divided. In molecules, atoms are bonded together by a single, double, or triple bond
An atom has a nucleus surrounded by electrons. Electrons are negatively charged particles. The nucleus contains positively charged electrons and protons. Depending on most particles, atoms can be positive or negatively charged. When atoms are bonded together to form molecules, bonds formed by electrons fill the outer orbit of the atom. Because atoms exist independently, there are no bonds in the atom.
When atoms combine in different amounts to form molecules, the end result can vary. For example, when two oxygen atoms combine to form a molecule, it becomes O2 which is the oxygen we breathe in.
But when three oxygen atoms combine to form O3 molecules, they become Ozone. So another difference between atoms and molecules is that when the same atoms combine together in various numbers, different properties of molecules can be formed. But when similar molecules combine together in each number, a simple product is formed.
A molecule is usually stable to exist by itself but the atom is not stable by itself. This is because of the presence of electrons in the atom. Only when an adequate number of electrons are present in the atom, it becomes stable. Sufficient amounts of electrons are received in atoms, when two atoms bind together and share electrons. Thus, it stabilizes and forms molecules. Not all atoms can form bonds together. Bonds depend on the charge and chemistry of the atom.
artinya:
Sebuah atom adalah partikel yang terkecil dalam sebuah unsur yang memiliki sifat-sifat unsur tersebut. Hal ini kerusakan atom tidak mungkin untuk tetap lanjut mempertahankan sifat dari unsur. Atom tidak terlihat dengan mata telanjang dan merupakan blok bangunan dasar. Misalnya atom unsur emas tidak bisa dipecah lebih lanjut dan setiap atom memiliki sifat emas. Molekul yang dibentuk oleh kombinasi dari dua atau lebih atom. Tidak seperti atom, molekul dapat dibagi ke atom individu. Atom-atom terikat bersama-sama dalam suatu molekul.
Molekul juga tidak terlihat dengan mata telanjang, sementara dapat dilihat melalui mikroskop pembesar tinggi dan perangkat ilmiah lainnya. Air ini terdiri dari berbagai molekul air.
Setiap molekul air terdiri dari satu atom oksigen dan dua atom hidrogen. Jadi sebuah molekul air dapat dibagi lagi menjadi atom oksigen dan hidrogen. Tapi atom ini tidak dapat dibagi. Dalam molekul, atom terikat bersama oleh, ikatantunggal, rangkap, atau tiga
Sebuah atom memiliki inti yang dikelilingi oleh elektron. Elektron adalah partikel bermuatan negatif. Inti mengandung elektron dan proton yang bermuatan positif. Tergantung pada sebagian besar partikel, atom dapat positif atau bermuatan negatif. Ketika atom bermuatan ikatan bersama untuk membentuk molekul, ikatan dibentuk oleh elektron mengisi orbit terluar dari atom. Karena atom ada secara independen, tidak ada ikatan dalam atom.
Ketika atom menggabungkan dalam jumlah yang berbeda untuk membentuk molekul, hasil akhirnya bisa berbeda-beda. Misalnya, ketika dua atom oksigen bergabung untuk membentuk molekul, menjadi O2 yang merupakan oksigen yang kita hirup masuk.
Tapi ketika tiga atom oksigen bergabung untuk membentuk molekul O3, menjadi Ozon. Jadi perbedaan lain antara atom dan molekul adalah bahwa ketika atom-atom yang sama menggabungkan bersama-sama dalam berbagai angka, sifat yang berbeda molekul dapat dibentuk. Tapi ketika molekul serupa menggabungkan bersama-sama dalam setiap nomor, produk yang sederhana terbentuk.
Sebuah molekul biasanya stabil untuk eksis dengan sendirinya tapi atom tidak stabil dengan sendirinya. Hal ini karena keberadaan elektron dalam atom. Hanya ketika jumlah yang memadai elektron hadir dalam atom, menjadi stabil. Jumlah yang cukup elektron diterima dalam atom, ketika dua atom berikatan bersama-sama dan berbagi elektron. Dengan demikian, menjadi stabil dan membentuk molekul. Tidak semua atom bisa membentuk ikatan bersama-sama. Ikatan tergantung pada muatan dan kimia dari atom.
maaf klo salah
20. if there 60 molecules of oxygen and 124 atoms of hydrogen the amount of water molecules can be formed and the remaining atoms left from the reaction of Those atoms are
yesterday and tomorrow
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