Question

The atomic number of nitrogen is 7. What is the mass number of a nitrogen atom with 6 neutrons?

Answer 1

Answer: The mass number is 13

Explanation:

Mass number = Protrons + neutrons;

While Atomic number = Number of neutrons

Therefore, if the atomic number of nitrogen is given as 7, then its Protrons = 7

So, mass number = 7 + 6 = 13