Question

The atomic number of nitrogen is 7. The mass is 14.01. This means that a) All nitrogen atoms have exactly 7 neutrons b) A small percentage of nitrogen atoms have fewer than 7 neutrons c) A small percentage of nitrogen atoms have more than 7 neutrons d) Some nitrogen atoms have fewer than 7 electrons

Answer 1

There are 7 protons and electrons in a nitrogen atom.

Answer 2

This means that there are 7 protons in the nucleus of a nitrogen atom.