Question

A certain polyatomic ion contains 49 protons and 50 electrons. What's the net charge of this ion?

A. +1
B.-2
C. +2
D. -1

Answer 1

The charge - 1

Because the charge of proton is + and electron -

Charge = +49 +(-50)

= - 1

Step-by-step explanation:

Answer 2

D, because the ion has one more electron (negative subatomic particle) than protons (positive subatomic particles).