Question

2 numeric 1 point calculate the number of protons and electrons in a chloride ion with a charge of -1. answer previous

Explanation:

Step1: Recall chlorine's atomic number

The atomic number of chlorine (Cl) is 17. The number of protons is equal to the atomic number. So, the number of protons in a chloride ion ($Cl^-$) is 17.

Step2: Calculate number of electrons

A neutral chlorine atom has 17 electrons (equal to the number of protons). A chloride ion with a charge of - 1 has gained 1 electron. So the number of electrons is $17 + 1=18$.

Answer:

Protons: 17, Electrons: 18