Q. No.In terms of increasing non-metallic character, which of the following is the
correct order for the elements N, P, O, and S?
1. P < S < N < O
2. O < S < N < P
3. O < N < S < P
4. N < S < O < P
correct order for the elements N, P, O, and S?
The correct order of metallic character of elements B, Al, Mg and K is :
| 1. | B > Al > Mg > K
|
2. | Al > Mg > B > K
|
| 3. | Mg > Al > K > B
|
4. | K > Mg > Al > B |
What is the correct order of non-metallic character for the elements B, C, N, F, and Si?
| 1. | B > C > Si > N > F | 2. | Si > C > B > N > F |
| 3. | F > N > C > B > Si | 4. | F > N > C > Si > B |
The outermost electronic configuration of the most electronegative element is :
| 1. | \(ns^2,np^3\) | 2. | \(ns^2,np^6n-1d^5\) |
| 3. | \(ns^2,np^5\) | 4. | \(ns^2,np^6 \) |
How many elements are contained in the sixth period of the modern periodic table?
1. Eight (8)
2. Eighteen (18)
3. Thirty-two (32)
4. Sixteen (16)
The element named after Lawrence Berkeley Laboratory is:
1. Seaborgium
2. Lawrencium
3. Moscovium
4. Hafnium
Boron has lesser ionization enthalpy than Beryllium, because:
| 1. | It is easier to remove electrons from p - a subshell than a filled s - subshell. |
| 2. | The s-electron can be removed easier than the p-electron. |
| 3. | Ionization enthalpy decreases with an increase in atomic number. |
| 4. | Ionization enthalpy increases along the period. |
Incorrect statement about metal is:
1. Metals can donate electrons.
2. Metals form ionic compounds.
3. Metals are more electronegative.
4. Metals have less ionization energy.
Which group contains elements that exist as a non-metal, liquid, and gas at room temperature?
| 1. | 15 | 2. | 14 |
| 3. | 18 | 4. | 17 |
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