10 how many electrons are in this ion? * (0.5 points) enter your answer
10 how many electrons are in this ion? * (0.5 points) enter your answer
Answer
Explanation:
Step1: Recall atomic number concept
The atomic number of chlorine (Cl) is 17, which means a neutral Cl atom has 17 electrons.
Step2: Consider ion charge
The ion is $Cl^-$, which has a - 1 charge. This means it has gained 1 electron.
Step3: Calculate electron number
The number of electrons in $Cl^-$ is $17 + 1=18$.
Answer:
18