Question

While going from top to bottom in group and left to right in period of a modern perodic table what changes will occur in following characterstics? Ionisation potential. Valency Atomic size. Electronegativity.
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Answer 1

Answer:

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Answer 2

Ionization potential :

While going top to bottom in a group:

It will increase as the number of shells will increase.

While going from left to right in the period:

It will decrease as the size gets smaller.

Valency :

While going top to bottom in a group:

It remains the same as the general electronic configuration is the same in a group.

While going from left to right in the period:

It first increases then decreases.

Atomic size :

While going top to bottom in a group:

It increases because the number of shells keeps increasing.

While going from left to right in the period:

It decreases because the effective nuclear charge increases.

Electronegativity :

While going top to bottom in a group:

It decreases. as the number of shells increases.

While going from left to right in the period:

It also increases. as the effective nuclear charge increases