The electronegativities (according to pauling) of the elements in period 3 of the portion of Periodic Table are as follows when the elements arranged in alphabetical order :
| Al |
Cl |
Mg |
Na |
P |
S |
Si |
| 1.5 |
3.0 |
1.2 |
0.9 |
2.1 |
2.5 |
1.8 |
(i) Arrange the elements in the order in which they occur in the Periodic Table from left to right. (The group 1 element first, followed by the group 2 element and so on, up-to group 7)
(ii) The element below sodium in the same group would be expected to have a ………….. (lower/higher) electronegativity than sodium and the element above chlorine would be expected to have a ……….. (lower/higher) ionization potential than chlorine.
