The element named after Lawrence Berkeley Laboratory is:
1. Seaborgium
2. Lawrencium
3. Moscovium
4. Hafnium
The group number that has non-metal, liquid as well as gas at room temperature is:
1. | 15 | 2. | 14 |
3. | 18 | 4. | 17 |
Incorrect statement among the following is:
1. | The p-block has 6 columns because a maximum of 6 electrons can occupy all the orbitals in a p-shell. |
2. | The d-block has 8 columns because a maximum of 8 electrons can occupy all the orbitals in a d-subshell. |
3. | Each block contains a number of columns equal to the number of electrons that can occupy that subshell. |
4. | The s- block contains mainly reactive metals. |