Question

If an element ‘X’ has mass number 11 and it has 6 neutrons, then write its representation.

Answer 1

'X' is an element ,then its Atomic mass (A) = 11

No. of Nutrons(n) = 6

Therefore, We have to find the Atomic numbers.

N = A - Z ---------(formula)

6 = 11- Z

Z = 11-6

Z = 5

Therefore, the element 'X' will be represented as\[\ce{^11_5X}\].