Question

protons: neutrons: electrons: what is the total charge?

Explanation:

Step1: Determine charge of each particle

Proton has charge \(+1\), electron has charge \(-1\), neutron has charge \(0\).

Step2: Count number of each particle

Number of protons \(n_p = 1\), number of electrons \(n_e=2\), number of neutrons \(n_n = 0\).

Step3: Calculate total charge

Total charge \(Q=n_p\times(+1)+n_e\times(-1)+n_n\times0\). Substitute values: \(Q = 1\times(+1)+2\times(-1)+0\times0=1 - 2+0=- 1\).

Answer:

\(-1\)