Q.
Match list I with list II and select the correct answer using the code given below
List -I (Successive ionisation energies)
List II (Elements)
$IE_1$
$IE_2$(kJ mol$^{-1}$
$IE_3$
1.
2080
3963
6130
(a)
H
2.
520
7297
11810
(b)
Li
3.
900
1758
14810
(c)
Be
4.
800
2428
3600
(d)
B
(e)
Ne
Codes:
| List -I (Successive ionisation energies) | List II (Elements) | ||||
|---|---|---|---|---|---|
| $IE_1$ | $IE_2$(kJ mol$^{-1}$ | $IE_3$ | |||
| 1. | 2080 | 3963 | 6130 | (a) | H |
| 2. | 520 | 7297 | 11810 | (b) | Li |
| 3. | 900 | 1758 | 14810 | (c) | Be |
| 4. | 800 | 2428 | 3600 | (d) | B |
| (e) | Ne | ||||
Classification of Elements and Periodicity in Properties
Solution:
Column I
Column II
1
High value of $IE_{1}$
a
Ne (noble gas)
2
Large gap between $IE_{1}$ and $IE_{2}$
b
$Li\left(1s^{2} 2s^{1}\right)$
3
Large gap between $IE_{1}$ and $IE_{3}$
c
$Be\left(1s^{2} 2s^{2}\right)$
4
$IE_{3} >\, IE_{2} >\, IE_{1}$
d
$B\left(1s^{2} 2s^{2} 2p^{1}\right)$
| Column I | Column II | ||
|---|---|---|---|
| 1 | High value of $IE_{1}$ | a | Ne (noble gas) |
| 2 | Large gap between $IE_{1}$ and $IE_{2}$ | b | $Li\left(1s^{2} 2s^{1}\right)$ |
| 3 | Large gap between $IE_{1}$ and $IE_{3}$ | c | $Be\left(1s^{2} 2s^{2}\right)$ |
| 4 | $IE_{3} >\, IE_{2} >\, IE_{1}$ | d | $B\left(1s^{2} 2s^{2} 2p^{1}\right)$ |