Question

SECTIUND
Q34-An element X has atomic number 17 and 18 neutrons. answer the following questions on the basis of above
information-
a) Identify X and calculate the atomic mass.
b) Draw the atomic orbit diagram of X and write the electronic configuration.
c) Write the valency and valance electrons.​

Answer 1

a) X=Chlorine atomic mass of Chlorine is 35.5 u

b) electronic configuration 17= 2,8,7

c) valency = 1 valance electrons=7