When an atom releases a beta particle, a) the mass number decreases by one. b) the mass number increases by one. c) the atomic number increases by one. d) the atomic number remains the same.

Option (C) is the correct answer.

Explanation:

In a nuclear reaction, sometimes a high energy electron or positron is emitted which is known as beta particle.

For example, or .

Therefore, we can conclude that when an atom releases a beta particle, the atomic number increases by one.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)