when an atom gains 2 electrons, the resulting charge is select the best option.
when an atom gains 2 electrons, the resulting charge is select the best option.
Answer
Explanation:
Step1: Recall electron - charge relationship
An electron has a charge of - 1 unit.
Step2: Calculate total charge change
When an atom gains 2 electrons, the charge change is $2\times(-1)= - 2$.
Answer:
- 2 (corresponding to the option with value - 2)