Question

How does an atom of rubidium-85 a rubidium ion with a +1 charge?

A. The atom loses 1 electron to have a total of 47.

B. The atom gains proton to have a total of 38.

C. The atom loses 1 electron to have a total of 36,

D. The atom gains 1 proton to have a total of 86.​

Answer 1

C. The atom loses 1 electron to have a total of 36

Step-by-step explanation:

The number of electrons in a Rubidium atom is 37. Since the atom loses 1 electron, it has 36 left.