Which statement best describes what happens next?

Option (d) is the correct answer.

Explanation:

An atom that gain electrons will acquire a negative charge resulting in the formation of an anion. An atom that loses electrons will acquire a positive charge resulting in the formation of a cation.

Sodium is a metal and its atomic number is 11 with electronic distribution 2, 8, 1. Whereas chlorine is a non-metal whose atomic number is 17 and its electronic distribution is 2, 8, 7.

Hence, in order to become stable sodium will lose one electron and it will acquire a positive charge. On the other hand, chlorine will gain one electron and thus, acquire a negative charge.

Hence, we can conclude that chlorine becomes an anion by gaining an electron from sodium.

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o