Multiple choice

Which of the following facts is true about alpha emission?

  1. Atomic mass is lowered by 4 units

  2. Atomic mass is increased by 4 units

  3. Atomic number is lowered by 2 units.

  4. Atomic number is unaffected.

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Atomic mass is lowered by 4 units.