﻿ The set representing the correct order of first ionisation energy is : Kaysons Education

# The Set Representing The Correct Order Of First Ionisation Energy Is

#### Video lectures

Access over 500+ hours of video lectures 24*7, covering complete syllabus for JEE preparation.

#### Online Support

Practice over 30000+ questions starting from basic level to JEE advance level.

#### National Mock Tests

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

#### Organized Learning

Proper planning to complete syllabus is the key to get a decent rank in JEE.

#### Test Series/Daily assignments

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

## Question

### Solution

Correct option is

Be > Mg > Ca

In a group, when we move from top to bottom, ionisatin energy decreases due to increase in size. The correct order of first ionisation energy is

Be > Mg > Ca.

#### SIMILAR QUESTIONS

Q1

In which one of the following pairs the radius of the second species is greater than that of the first?

Q2

The increasing order of the first ionisation enthalpies of elements B, P, S and F (lowest first) is

Q3

The element having highest electron affinity is

Q4

Diagonal relationship is for

Q5

The correct order according to size is

Q6

The successive ionisation energy values for an element ‘X’ are given below:

1st ionisation energy = 410 kJ mol–1

2nd ionisation energy = 820 kJ mol–1

3rd ionisation energy = 1100 kJ mol–1

4th ionisation energy = 1500 kJ mol–1

5th ionisation energy = 3200 kJ mol–1

Find out the number of valence electrons for the atom ‘X’.

Q7

In which of the following arrangement the order is not according to the property indicated against it?

Q8

Which is the correct order of electronegativity?

Q9

The order of first ionisation energies of the elements Li, Be, B, Na is

Q10

An element with atomic number 106 has been discovered recently. Which of the following electronic configurations will it possess?