Question

Element - At. No.
A= 1
B= 8
C = 10
D= 11
E = 12
F = 17
a. Which of the given elements is a stable element?

b. Identify any one metal and one non-metal from above.

c. Write electronic configuration of element B and element E​

Answer 1

Answer: a. c=10

              b. d=11 is metal,f = 17 is non-metal

              c. b =2, 6 . e = 2,8,2