Question #ac708

2 Answers
May 10, 2017

Answer:

Both A and C.

Explanation:

Beta minus decay occurs when a neutron decays into a proton, electron, and antineutrino. So the atomic number increases by one.

Beta plus decay occurs when a proton decays into a neutron, positron, and a neutrino. So the atomic number decreases by one.

http://www2.lbl.gov/abc/wallchart/chapters/03/2.html

http://www2.lbl.gov/abc/wallchart/chapters/03/2.html

May 10, 2017

Answer:

C.

Explanation:

Let's say the radioactive isotope is Y and the new element formed is Z. If a beta particle (e) is released it would look something like this:

¹₀Y → ₋₁⁰e + ¹₁Z

So atomic number increases by 1 but mass number is unchanged.