Question

nitrogen is important to the chemical industry. it is used to make fertilizers, dyes, nylon, and explosives. it also plays an important biological role as it is cycled naturally by living organisms. which of the following elements would most likely have the same number of valence electrons as nitrogen (n)? a carbon (c) b oxygen (o) c phosphorus (p) d helium (he)

Explanation:

Step1: Recall valence - electron rule

Elements in the same group of the periodic table have the same number of valence electrons.

Step2: Identify group of nitrogen

Nitrogen (N) is in Group 15 of the periodic table.

Step3: Identify group of each option

Carbon (C) is in Group 14, oxygen (O) is in Group 16, phosphorus (P) is in Group 15, and helium (He) is in Group 18.

Answer:

C. phosphorus (P)