Question

the diagram shown is an example of the element. a boron. b bromine. c nitrogen.

Explanation:

The atomic - number of an element is equal to the number of protons. In the diagram, the number of protons ($p^{+}$) is 5. Boron has an atomic number of 5. Nitrogen has an atomic number of 7 and bromine has an atomic number of 35.

Answer:

A. boron