1. All atoms have three fundamental parts A )True B) False ) none of the above 2
ID: 575605 • Letter: 1
Question
1. All atoms have three fundamental parts A )True B) False ) none of the above 2. Proton is the most important part of an atom. A)True H) False 3. When a neutral atom loses an electron. A) Anion is formed 8) Cation is formed Ci none of the above and B When a neutral atom gains an electron A) Cation is formed D) none of the above For a neutral atom the number of electrons is the same as the number of protons False C) A and B D)none of the above The mass of an electron is higher than the mass of a proton. A) True D) nonc of the above D) none of the above 4. B) Anion is formed s. the same as the number of protons. A) True B) 6. B) Fase C) A and B 7. The fundamental parts of an atom have A) The same mass 8) Different mass C) A and Bu none of the above 8. Protons are located at the outermost shell of an atom A) Faise 8) True C) none of the above 9. Electrons determine the chemical reactivity of an atom A) True B) False C) none of the above 10. K and NHa are examples of A) Anion B) Cation C) A and B d) none of the above 11. Protons and neutrons are housed in the nucleus of an atom A) False B) True C) none of the above 12. The number of electrons in CI is the same as in Ct A) True B) False C)none of the above 13. One can essentially determine the atomic mass of an atom if the number of electrons and neutrons is known A) False B) True C) none of the above 14. The entity formed when Ca loses two electrons is A) Ca B) Caz. C) 2Ca ) Ca2. 15. The entity formed when Ba and PO react is A) Ba (POb B) Ba (PO) C) Ba (PO) D) none of the above 16. The mass of a proton is slightly higher than the mass of a neutron A) True B) False C) none Of the above. B) not capable of independent existence C) 17. An atom is A) capable of independent existence A and B D) none of the above. 18. The three fundamental parts of an atom A) differ in mass B) differ in charge C) differ in both mass and charge D) none of the above 19. A molecule is A) capable of independent existence 8) not capable of independent existence C) A and 8 D) none of the above 20. 0, is A) an atom B) a compound C) molecule D) a mixture 21. S is a A) monoatomic molecule B) atom C) diatomic molecule D) polyatomic moleculeExplanation / Answer
Ans 1
True
Three fundamental part of atoms
protons,neutrons,and electrons
Ans 2
True
If number of protons are changed, then the element itself changes.
Ans 3
when a neutral atom loses an electron it becomes a cation.
Option B is the correct answer
Ans 4
when a neutral atom gains an electron it becomes a anion
Option B is the correct answer
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