Question

40 POINTS IF YOU ANSWER!

A neutral atom has an atomic number of 20 and a mass number of 42. How many electrons does the atom have?

Question 4 options:

20


22


42


62

Answer 1

22

Step-by-step explanation:

Answer 2

The question states that the atom is neutral, so there is no electrical charge in the atom.

The atomic number is 20, and the atomic mass is 42. The atomic number is equal to the protons and electrons present within the atom, since there is no electrical charge.

In a neutral atom, an atomic number of 20 means that the atom will have 20 electrons.