Question

if an atom has 7 protons and 7 electrons what charge will it have? -2 +2 -1 0

Explanation:

Step1: Determine charge of proton and electron

Proton has \(+1\) charge, electron has \(-1\) charge.

Step2: Calculate total charge

Total charge \(=7\times(+1)+7\times(-1)\)
\(=7 - 7\)
\(=0\)

Answer:

\(0\)