Atomic Radius

Q.

The size of iso electronic species $F^{‑}$ , $Ne$ and $N{a}^{+}$ is affected by

1. Nuclear charge (Z)

2. Valence principal quantum number (n)

3. Electron-electron interaction in the outer orbitals

4. None of the factors because their sizes the same.

Q.

In which of the following pairs, the second atom is larger than the first?

1. N, P
2. Br, Cl
3. Ba, Sr
4. Mg, Al.

Q. Which of the following is the correct order of the atomic size of C, N, P and S?

1. $\text{C < N < S < P}$
2. $\text{N < C < S < P}$
3. $\text{N < C < P < S}$
4. $\text{C < N < P < S}$

Q.

Atomic radii of fluorine and neon in angstrom units are respectively given by?

1. 0.762, 1.60

2. 1.60, 1.60

3. 0.72, 0.72

4. None of these values

Q.

Atomic radii of fluorine and neon in Angstrom units are respectively given by

1. 0.72, 1.60

2. 1.60, 1.60

3. 0.72, 0.72

4. None of these

Q.

Which of the following has the maximum atomic radius?

1. Al

2. Mg

3. Si

4. P

Q.

The Van der Waals radii of $O,N,Cl,F$ and $Ne$ increases in the order?

1. $N,F,O,Ne,Cl$

2. $N,O,F,Ne,Cl$

3. $F,O,Ne,N,Cl$

4. $F,Cl,O,N,Ne$

Q. is the distance from the centre of nucleus to the valence shell of an atom

1. Covalent radius
2. Metallic radius
3. Ionic radius
4. Atomic radius

Q. In a diatomic molecule, internuclear distance is the distance between two nuclei.

1. True
2. False

Q. For study of noble gases, van der Waals radius is measured.

1. True
2. False