All of the following pertain to the atom Carbon-14 except A. has 6 protons. B. h

Question

All of the following pertain to the atom Carbon-14 except A. has 6 protons. B. has 6 electrons. C. has 14 neutrons. D. is an isotope of Carbon. What is the maximum number of electrons in the second energy shell of an atom? A. 2 B. 4 C. 8 D. 32 Two or more atoms bonded together are called a/an A. ion. B. isotope. C. element. D. electrolyte. E. molecule. What would be the valence number of electrons in the sulfur (S) atom? A. 2 B. 6 C. 8 D. 16 E. 32 Covalent bonds A. result from losing electrons. B. are always polar. C. are always nonpolar. D. result from sharing electrons. E. result from gaining electrons. Cations are A. charged subatomic particles. B. atoms that have gained electrons. C atoms that have gained neutrons. D. capable of forming ionic bonds with anions E. atoms without protons.

Explanation / Answer

Answer 19:

Ans 20: C (8 electrons) since no. Of electrons in any shell no. Is 2*square of shell no., Here shell no. =2, thus it's square is 4, now 2*4=8electrons.

Ans 21: E (molecule)

Ans 22: B (6electrons, Sulfur atomic no. 16, electronic configuration 2,8,6)

Ans 23: D (covalent bond form when electrons are shared between two atoms)

Ans 24: D (cations form when an atom loses electron and thus become +vely charged, to bond with -vely charged anion)

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