Answer:
decay
Explanation: General representation of an element is given as:
where,
Z represents Atomic number
A represents Mass number
X represents the symbol of an element
: It is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. This is also known as
-decay. In this the mass number remains same.
![_A^Z\textrm{X}\rightarrow _(Z-1)^A\textrm{Y}+_(+1)^0e](https://img.qammunity.org/2020/formulas/physics/high-school/bjllct34hbfo9bt7vqnus5g015le2hcme6.png)
![_8^(15)\textrm{O}\rightarrow _(7)^(15)\textrm{N}+_(+1)^0\beta](https://img.qammunity.org/2020/formulas/chemistry/middle-school/8i8jux8xta33692lh6pe2dkkf2u0vamsdb.png)