Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell. We can write the configuration of oxygen's valence electrons as 2s²2p⁴
Answer and Explanation:
(a) : its chemical name is sodium sulfate in which sodium is present as and sulfate is present as
(b) : Its chemical name is copper nitrate which is a inorganic compound which is mostly crystalline in nature
(c) : Its chemical name is iron carbonate or ferric carbonate
Answer:
A. They are isotopes.
Explanation:
An isotope is an element with the same number of protons but different number of neutrons resulting in a varied mass number/molecular weight.