Question

In one form of beta decay, potassium decays to produce calcium. What values do the letters represent?

Superscript 40 Subscript a Baseline Upper k right arrow Superscript b subscript 20 Baseline Upper C a + Superscript 0 Subscript c Baseline e

a is

b is

c is

The nuclear reaction is a

decay.

Answer 1

a is 19

b is 40

c is -1

the nuclear reaction is a beta minus decay.

Answer 2

The person in the comments is correct.

a is 19

b is 40

c is -1

The nuclear reaction is a

✔ beta minus decay.