Question

if an atom has 9 protons 10 electrons and 10 neutrons. what is the charge of the atom?

Explanation:

Step1: Determine the charge of protons and electrons

Protons have a charge of \(+ 1\) each, and electrons have a charge of \(-1\) each. Neutrons are neutral (\(0\) charge).

Step2: Calculate the total charge

The total charge \(Q\) of the atom is given by the formula \(Q=( \text{number of protons}\times+1)+(\text{number of electrons}\times - 1)+(\text{number of neutrons}\times0)\).
Substitute the values: number of protons \(=9\), number of electrons \(=10\), number of neutrons \(=10\).
\(Q=(9\times + 1)+(10\times-1)+(10\times0)\)
\(Q = 9-10+0\)
\(Q=-1\)

Answer:

\(-1\)