Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

helium has ns^2 configuration and hence belongs to 18th group. why aren't the elements in group 2 considered as nobel?
Asked by Saurabh Rai | 20 Nov, 2010, 12:00: AM
answered-by-expert Expert Answer
Dear Student
 
Group 2 elements have also filled s orbital, but they have empty p-orbitals. while in Group 18 the elements have both s and p-filled orbitals.
In terms of elements Noble means non-reactive. Group 18 elements were found non-reactive so they were named as Noble. Group 2 elements are reactive metals, so we cant call them noble.
 
We hope that clarifies your query.
With regards,
Team
Topperlearning
Answered by | 21 Nov, 2010, 09:07: AM
CBSE 11-science - Chemistry
Asked by sk5987020 | 21 Nov, 2023, 10:53: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by kamyabansal2905 | 16 Jul, 2022, 07:11: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Chaithujonnala1020 | 22 Jul, 2021, 06:00: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by muzainakallatra7 | 28 Mar, 2021, 09:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by jigneshd5127 | 18 Jan, 2021, 09:16: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by akhilshrivallibrundapallavi123 | 06 Nov, 2020, 07:15: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by negimanish9735 | 28 Oct, 2020, 09:30: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by abhishhadnur | 28 Sep, 2020, 04:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by sulaikhasulu393 | 30 May, 2020, 11:30: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×