Use the following atomic masses.
-The emission of one beta particle (an electron)from the nucleus of an atom produces a change of
A)-1 in the atomic number.
B)+1 in the atomic number.
C)+2 in the atomic number.
D)+2 in the atomic weight.
E)-2 in the atomic weight.

Question

Use the following atomic masses. 
-The emission of one beta particle (an electron)from the nucleus of an atom produces a change of
A)-1 in the atomic number. 
B)+1 in the atomic number. 
C)+2 in the atomic number. 
D)+2 in the atomic weight. 
E)-2 in the atomic weight.

Quizplus · Accepted Answer

When a nucleus emits a beta particle (which is essentially an electron), it results in the conversion of a neutron into a proton, thereby increasing the atomic number by 1. The atomic weight remains largely unchanged because the mass of an electron is negligible compared to that of a neutron or proton.

Use the Following Atomic Masses