Which is not an alkaline earth metal?

Important Questions on Periodic Classification of Elements

EASY

10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 5 - Periodic Classification of Elements>Value Based Questions>Q 20

Which is not an inert gas?

EASY

10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 5 - Periodic Classification of Elements>Value Based Questions>Q 21

Which among the following has largest atomic size - $\mathrm{Li}, \mathrm{Na}, \mathrm{Rb}, \mathrm{Cs}$?

EASY

10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 5 - Periodic Classification of Elements>Value Based Questions>Q 22

In $\mathrm{N}\mathrm{a}, \mathrm{M}\mathrm{g}, \mathrm{A}\mathrm{l}$ and $\mathrm{S}\mathrm{i}$, the element having largest size, is:

EASY

10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 5 - Periodic Classification of Elements>Value Based Questions>Q 23

In elements of $17$ group, the element having largest size is:

EASY

10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 5 - Periodic Classification of Elements>Value Based Questions>Q 24

In $\mathrm{Na}, \mathrm{Mg}, \mathrm{Al} \mathrm{and} \mathrm{Si}$ the element having smallest size is:

HARD

10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 5 - Periodic Classification of Elements>Value Based Questions>Q 25

When Mg, Ca and Sr are placed in order of atomic size, the order is:

MEDIUM

10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 5 - Periodic Classification of Elements>Value Based Questions>Q 26

Elements of group 1 form oxides:

EASY

10th CBSE

IMPORTANT

ESSENTIALS OF CHEMISTRY X>Chapter 5 - Periodic Classification of Elements>Value Based Questions>Q 27

Electronic configuration of an element $\mathrm{M}$ is $\mathrm{2,8},\mathrm{8,2}$. Which statement is not correct about it?