Question

an element has an atomic mass number of 16 and an atomic number of 7. the element has __ protons and __ neutrons

Answer 1

7 protons and 9 neutrons

Answer 2

7 protons and 9 neutrons

Step-by-step explanation:

As we know,

Atomic number of an element is the total number of proton in its atom. Thus,

Number of proton
`= 7`

Mass number is equal to the sum of number of proton and number of neutron

Mass number
`= \\` Number of Proton
`+ \\` number of neutron

Putting the available values in above relation, we get -

`16 = 7 +`Neutron

Neutron
`= 16 -7\\`

`= 9\\`

Hence there are 7 protons and 9 neutrons