Abnormally high ionization enthalpy of B as depicted in the graph below can be due to :
1. Completely filled 2p subshell.
2. Completely filled 2s subshell.
3. Completely filled 3d subshell.
4. Completely filled 4f subshell.
The correct graph depicting ionization energies for 2nd period elements is:
1. | |
2. | |
3. | |
4. | None of the above |
Statement A: | The elements Z = 117 belongs to chalcogen family and the electronic configuration would be [Rn] 5f146d107s27p4 |
Statement B: | The element with Z = 120 belongs to Group 2 (alkaline earth metals), and the electronic configuration would be [Uuo]8s2 |
The correct option is:
1. | Statement A is correct, Statement B is wrong. |
2. | Statement A is wrong, Statement B is correct. |
3. | Both Statement A and Statement B are wrong. |
4. | Both Statement A and Statement B are correct. |
The graph between ionization energy and atomic number for
the first group elements is shown below:
The element represented by Y in the graph above is -
1. Cs
2. Rb
3. Ca
4. K
In the following graph of variation of ionization energy with atomic number, X, Y, and Z represent elements.
The group number of X, Y, and Z elements is:
1. | 1st group | 2. | 15th group |
3. | 17th group | 4. | 18th group |
Consider the following curve:
X represents group with highest atomic radius. The element that belongs to Y group can be :
1. | Na | 2. | Mg |
3. | Br | 4. | Si |
The correct order of ionization energy of W, X, Y and Z is-
1. | W > X > Y > Z | 2. | W < X < Y > Z |
3. | W < X > Y< Z | 4. | W > X > Y< Z |
Match the following isoelectronic species in Column I and Column II:
Column I | Column II | ||
i. | a. | ||
ii. | Ar | b. | |
iii. | c. | ||
iv. | d. |
i | ii | iii | iv | |
1. | b | c | a | d |
2. | c | b | a | d |
3. | c | d | b | a |
4. | b | c | d | a |
Correct statement(s) among the following are:
(a) | Helium has the highest first ionisation enthalpy in the periodic table. |
(b) | Chlorine has less negative electron gain enthalpy than fluorine. |
(c) | Mercury and bromine are liquids at room temperature. |
(d) | In any period, the atomic radius of alkali metal is the highest. |
Choose the correct option:
1. (a), (c), (d)
2. (a), (b), (c)
3. (a), (c)
4. (a), (d)
Match the element in Column I with that in Column II.
Column-I | Column-II | ||
(a) | Copper | (i) | Non-metal |
(b) | Fluorine | (ii) | Transition metal |
(c) | Silicon | (iii) | Lanthanoid |
(d) | Cerium | (iv) | Metalloid |
(a) | (b) | (c) | (d) | |
1. | (ii) | (iv) | (i) | (iii) |
2. | (ii) | (i) | (iv) | (iii) |
3. | (iv) | (iii) | (i) | (ii) |
4. | (i) | (ii) | (iii) | (iv) |