Electronegativity Conductivity and Photoelectric Effect (Group 1)

Q. The correct sequence of increasing covalent character is represented by

1. 
2. 
3. 
4. 

Q. Electropositivity decreases as we go down the group.

1. True

2. False

Q. Which of the following acts as a better metal?

1. Na

2. K

3. Li

4. Rb

Q. The first I.P. of sodium is numerically equal to the:

1. electron affinity of $Ne$
2. second I.P. of $Mg$
3. electron affinity of $N{a}^{+}$
4. first I.P. of $Mg$