Ionization Energy

Q. Arrange the following subshells in the increasing order of penetration power.

1. 3s
2. 1s
3. 3p
4. 2s
5. 2p

Q.

Why does Fluorine have higher ionization energy than Iodine?

Q.

Which of the following shows biggest jump in II and III ionization energy:

1. 1$s^2$ 2$s^2$ 2$p^6$ 3$s^2$

2. 1$s^2$ 2$s^2$ 2$p^6$ 3$s^2$, 3$p^2$

3. 1$s^2$ 2$s^2$ 2$p^6$ 3$s^2$3$p^6$ , 4$s^2$4$p^2$

4. 1$s^2$ 2$s^2$

Q.

In a given shell, the order of screening effect is

1. $s>p>d>f$

2. $d>f>s>p$

3. $p<d<s<f$

4. $f>d>p>s$

Q. Which of the following p-block element will have highest ionization enthalpy?

1. Carbon (C)
2. Oxygen (O)
3. Nitrogen (N)
4. Fluorine (F)

Q.

Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have highest third ionization enthalpy?

1. Vanadium (Z = 23)
2. Chromium (Z = 24)
3. Manganese (Z = 25)
4. Iron (Z = 26)

Q. Arrange the following elements in the increasing order of first ionisation enthalpies.

1. Lithium (Li)
2. Potassium (K)
3. Caesium (Cs)
4. Sodium (Na)