Question

will fan and medal!
When a radioactive isotope releases an alpha particle, the atomic number of the atom is

A.decreased by two.
B. decreased by four.
C. increased by two.
D.increased by four.

Answer 1

@paki

Answer 2

What do you think?

Answer 3

alpha particle is equivalent to a helium atom right? \[He _{2}^{4}\]
So when it undergoes an alpha decay the atomic number or the no. of protons decrease by two !

Answer 4

i thought it was A. so i was right?

Answer 5

it was right. Thanks.

Answer 6

anytime