The first ionisation potential of Na, Mg, Al and Si are in the order:

Question

The first ionisation potential of Na, Mg, Al and Si are in the order: (A) Na < Mg < Al < Si (B) Na < Al < Mg < Si (C) Na>Mg>Al>Si (D) Na < Si < Al < Mg

Tardigrade Admin · Accepted Answer

The first ionisation potential is the energy required to pull out first electron from the outer most orbit.
The sequence for this is as follows

N a < A l < M g < S i

The first ionisation potential increases along the period from left to right.

Q. The first ionisation potential of $N a, M g, A l$ and $S i$ are in the order:

$N a < M g < A l < S i$

$N a < A l < M g < S i$

$N a > M g > A l > S i$

$N a < S i < A l < M g$

The first ionisation potential is the energy required to pull out first electron from the outer most orbit.
The sequence for this is as follows
$N a < A l < M g < S i$
The first ionisation potential increases along the period from left to right.

Q. The first ionisation potential of Na,Mg,Al and Si are in the order:

Na<Mg<Al<Si

Na<Al<Mg<Si

Na>Mg>Al>Si

Na<Si<Al<Mg