Home
Class 12
CHEMISTRY
Assertion: Helium and beryllium have sim...

Assertion: Helium and beryllium have similar outer electronic configuration of the type `ns^(2)`.
Reason: Both are chemically inert.

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is not a correct explanation A

C

A is true but R is false

D

A is false but R is true

Text Solution

Verified by Experts

The correct Answer is:
C
Reason : Electronic configuration of He and Be are He (Z = 2) : `1s^(2)` and Be (Z = 4) : `1s^(2)2s^(2)`.
Promotional Banner

Topper's Solved these Questions

  • THE NOBLE GASES

    DINESH PUBLICATION|Exercise Ultimate Preparatory Package|10 Videos

  • THE NOBLE GASES

    DINESH PUBLICATION|Exercise Brain Teasers - 19|40 Videos

  • THE NOBLE GASES

    DINESH PUBLICATION|Exercise Matrix Match Type|5 Videos

  • THE NITROGEN FAMILY

    DINESH PUBLICATION|Exercise Ultimate|14 Videos

  • THE OXYGEN FAMILY

    DINESH PUBLICATION|Exercise PREPARATORY PACKAGE|14 Videos

Similar Questions

Explore conceptually related problems

Outer electronic configuration of Eu^(2+)

The alkali metals have an outer electronic configuration of

Statement-1 :Helium and beryllium both are chemically inert. Statement-2 : Helium and beryllium have similar outer electronic configuration of the type ns^(2)

Assertion : He and Be have similar valence shell electronic cofiguration ns^(2) Reason :Both are chemically inert.

He and Be both have the same outer electronic configuration like ns^(2) type. Statement-2 : Both are chemically inert.

Element of group 14 (IV A) have outer electronic configuration of

Elements with outer electron configuration ns2 np6 are: