The atomic weight of helium is 4.

Nuclear fission is a powerful phenomenon that generates energy.

This nuclear reactor is designed to be very safe.

He is an expert in electronics.

My electronic dictionary is very convenient.

I check my electronic mail every day.

An electron volt is a unit of energy.

I heat up the lunch box in the microwave oven.

Let's share information on the electronic bulletin board.

I read the electronic version of the newspaper every morning.