Question

2. The electronic configuration for the various elements
are given below
a. 1s22s22p5
b. 1522s22p63s
c. 1822s22p6352 d. 1s22s22p6
From the above configurations, the correct order of
their ionisation energy will be [NCERT Pg. 89]
(1) b<c<a<d (2) a < b <c<d
(3) b< c < d <a (4) d < a <c<b​

Answer 1

Answer:

(i) (A) Mg (Z=12) (B) Ne (Z=10) (C) N (Z=7) (D) Na (Z=11) (E) F (Z=9)

(ii) D: Na is alkali metal.

(iii) E: F belongs to the halogen.

(iv) D: Na is alkali metal.

(v) B: Ne an inert gas.