(a) what is the atomic number of copper? (b) what is the atomic number of nitrogen? (c) what is the atomic…

(a) what is the atomic number of copper? (b) what is the atomic number of nitrogen? (c) what is the atomic number of phosphorus?
Answer
Explanation:
Step1: Recall atomic number facts
Atomic numbers are fixed for elements. Copper's atomic number is a known value.
Step2: Recall nitrogen's atomic number
Nitrogen also has a specific atomic number in the periodic - table.
Step3: Recall phosphorus's atomic number
Phosphorus has its own unique atomic number.
Answer:
(a) 29 (b) 7 (c) 15