Question

In the following table, six elements A,B,C,D,E and F (here
letters are not the usual symbols of the elements) of the
Modern Periodic Table with atomic numbers 3 to 18 are
given:
3 4 5 6 7 8 9 10
А
E
G
11
12
13
14
15
16
17
18
B
с
D
F
a. Which of these is (i) a noble gas (ii) a halogen?
b. If B combines with F, what would be the formula of
the compound formed?
c. Write the electronic configurations of C and E.

Answer 1

Answer:

a)Noble gas:- G

Halogen:- F

b) BF

c) C(2,8,2) E(2,6)