Chemistry, 11.10.2019 00:00 haileyhale5

State the number of electrons that must be gained by atoms of each of the following elements to obtain a stable electron configuration. a) ci b) se c) n d) i e) s

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Answer from: jasmin2344

The answer to your question is below

Explanation:

a) CI Chlorine is located in group VIIA, so its must gain one electron to be stable.

b) Se Selenium is located in group VIA, it must gain 2 electrons to be stable.

c) N Nitrogen is located in group VA, it must gain 3 electrons to be stable.

d) I Iodine is located in group VIIA, so it must gain 1 electron to be stable.

e) S sulfur is located in group VIA, so it must gain 2 electrons to be stable.

Answer from: Gaby702

For an atom to have a stable configuration. it must have eight electrons in its outermost shell.

The electron configuration of ground state Cl is [Ne] 3s² 3p⁵, this means that there are seven electrons in its outermost shell. A stable octet means eight electrons so it needs one more electron.

Selenium has electron configuration [Ar] 3d10 4s2 4p4, this means that there are six electrons in its outermost shell and two more electrons are required to reach a stable electron configuration.

Nitrogen has electronic configuration [He] 2s2 2p3, this means that it has five electrons in the valence shell and need three more electrons to achieve a stable electron configuration.

Iodine has an electronic configuration [Kr] 4d10 5s2 5p5, this means that the outermost shell has seven electrons. One more electron is required to achieve a complete octet.

Sulfur has electronic configuration [Ne] 3s² 3p⁴, this means that there are six electrons in the valence shell and two more electrons are required for the atom to obtain a stable electron configuration.

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Answer from: Quest

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c. and at that point will start to turn into steam (gas)

Answer from: Quest

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.

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State the number of electrons that must be gained by atoms of each of the following elements to obta...

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