If element has 7 neutrons and mass number is 12 then write its represe

1.	If element has 7 neutrons and mass number is 12 then write its representation
Answer» Given:-: Neutron NUMBER= 7 ATOMIC mass= 12 To FIND :- The representation •Solution:- We know Atomic number= proton number Atomic mass = Proton number+ Neutron number Neutron= - Proton number + Atomic mass Proton number = Atomic mass - Neutron number = 12 -7 = 5 and we know that the ELEMENT is DETERMINED by the proton count . As the proton number is 5 So this element is written as B-11.

If element has 7 neutrons and mass number is 12 then write its representation

Answer»

Given:-:

Neutron NUMBER= 7

ATOMIC mass= 12

To FIND :-

The representation

•Solution:-

We know

Atomic number= proton number

Atomic mass = Proton number+ Neutron number

Neutron= - Proton number + Atomic mass

Proton number = Atomic mass - Neutron number = 12 -7 = 5

and we know that the ELEMENT is DETERMINED by the proton count .

As the proton number is 5

So this element is written as B-11.