CBSE Class 10 Answered
Why the period 3 of the periodic table has 8 elements
Asked by Debdulal | 19 Oct, 2018, 05:43: PM
Expert Answer
The Aufbau’s principle states that, in the ground state of the atoms, the orbitals are filled in order of their increasing energies.
So there are only eight elements that satisfy this.
The third period should contain 18 elements but there are ten electrons which have high energy which is equivalent to the fourth shell and electrons will not occupy the third shell.
Answered by Varsha | 22 Oct, 2018, 02:39: PM
Application Videos
Concept Videos
CBSE 10 - Chemistry
Asked by kavithasenthil148 | 06 Feb, 2021, 07:09: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by mina6poonam | 21 Jan, 2021, 04:57: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by dudalaganesh | 04 May, 2020, 08:35: AM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by abhisv8953 | 21 Apr, 2020, 02:59: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by bikashlakhya2003 | 23 Jan, 2020, 07:40: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by webfaridisit | 06 Jan, 2020, 08:56: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by vermamahima021982 | 27 Aug, 2019, 09:50: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by saradamahapatra9999 | 10 Aug, 2019, 11:35: AM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by prathameshmane3622 | 10 Jul, 2019, 08:52: PM
ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by 123cmb123 | 12 Dec, 2018, 10:02: PM
ANSWERED BY EXPERT