Question

An element X has 11 protons and 12 neutrons. Find out it's atomic number,
mass number .Also name the element and write it's symbol.​

Answer 1

Answer:

atomic number=11,. element=sodium. symbol.Na

Answer 2

Answer:

Number of Proton = Atomic number

So,

Atomic number =11

Mass number=proton + neutrons

Mass number=11+12= >23

Electronic configuration=2,8,1(11)

Name of element is Sodium

It's atomic number is equal to the number of protons and that is 11.

It's mass number is equal to the sum of number of protons and the number of neutrons in its nucleus and that is 23.

It's electronic configuration is 2,8,1.