Question

When alpha particle emitted
new element formed lie
a) Two place left to parent element
b) One group right to parent element
c) Two place right to parent element
d) One place left to parent element
e)Other:_______________________?

Answer 1

Answer:

When an atom emits an alpha particle in alpha decay, the atoms mass number decreases by four due to the loss of the four nucleons in the alpha particle The atomic number of atom goes down by 2, as a result of the loss of two protons - the atom becomes a new element .