The correct order in which the first ionisati | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The first ionisation potential generally increases in a period from left to right and decreases in a group from top to bottom. Comparing the eleme

Vedclass · Accepted Answer

$K, Na, Be$

Vedclass · Answer

(B) The first ionisation potential generally increases in a period from left to right and decreases in a group from top to bottom. Comparing the elements: $K$ (Group $1$,Period $4$),$Na$ (Group $1$,Period $3$),and $Be$ (Group $2$,Period $2$). Since $K$ and $Na$ are in the same group,$IE_1$ of $K $Be$ is in Period $2$ and Group $2$,which has a higher $IE_1$ than elements in Group $1$ of the same or lower periods. Thus,the correct order of first ionisation potential is $K < Na < Be$.

$(IP)_1$	$7.1 \ eV$
$(IP)_2$	$10.3 \ eV$
$(IP)_3$	$36.2 \ eV$
$(IP)_4$	$39.1 \ eV$

The correct order in which the first ionisation potential increases is

Similar Questions

The correct order of $IE_2$ (second ionization enthalpy) is:

The ionization potential $(IP)$ values for an element are given below. Identify the element:
$(IP)_1$ $7.1 \ eV$
$(IP)_2$ $10.3 \ eV$
$(IP)_3$ $36.2 \ eV$
$(IP)_4$ $39.1 \ eV$

In each period,the alkali metals...

The first ionization enthalpies of $Mg$ and $Al$ can be expected to be

Which of the following statements is incorrect?

Vedclass Test Series

Exam Paper Generator

Online Exam Module