Question

An element x has atomic mass no. 27 and it cantains 13 protons . Write the symbolic represent ation of the element

Answer 1

element=Aluminium (Al)

no.of neutrons=mass no.-no.of protons

=27-13

=14

the electronic configuration =8,2,3

Answer 2

Element with atomic number 13 is aluminium[Al]

Electronic configuration=K L M

2 8 3

Aluminium cation=Al+