ICSE Class 8 Answered
give reason
1) metals form cations
2) the symbols of some elemens have two letters.
Asked by nathsantanukumar | 09 May, 2018, 07:08: PM
Expert Answer
1) Metals form cations:
Elements who have 1,2 and 3 valence electrons are known as metals, now for stability, they have to complete their octet for this they lose there valence electrons to complete their octet because it is easier to lose electrons than gain it.
Hence metals form cations.
2) The symbols of some elements have two letters.
There are over 118 different elements but only 26 letters, so we have to give them different letter symbols.
Answered by Ramandeep | 10 May, 2018, 10:49: AM
Concept Videos
-
Language of Chemistry
Language of Chemistry, Symbol, Valency and Formula -
Language of Chemistry
Language of Chemistry, Symbol, Valency and Formula
ICSE 8 - Chemistry
Asked by nihalcrj2006 | 26 Jan, 2021, 07:33: PM
ANSWERED BY EXPERTICSE 8 - Chemistry
Asked by dkarthik96840 | 01 Sep, 2020, 06:41: PM
ANSWERED BY EXPERTICSE 8 - Chemistry
Asked by jogendrasahu69 | 23 Nov, 2019, 10:34: PM
ANSWERED BY EXPERTICSE 8 - Chemistry
Asked by nagarajmkt123 | 29 Oct, 2019, 02:13: PM
ANSWERED BY EXPERTICSE 8 - Chemistry
Asked by radheshyamsaf485 | 04 Jun, 2019, 04:57: PM
ANSWERED BY EXPERTICSE 8 - Chemistry
Asked by acharyasanjay36 | 25 May, 2019, 10:43: AM
ANSWERED BY EXPERTICSE 8 - Chemistry
Asked by sreejuu | 16 May, 2019, 10:46: PM
ANSWERED BY EXPERTICSE 8 - Chemistry
Asked by Jas994287 | 08 Apr, 2019, 04:31: PM
ANSWERED BY EXPERTICSE 8 - Chemistry
Asked by JINSONJOESPH2000 | 26 Mar, 2019, 03:11: PM
ANSWERED BY EXPERTICSE 8 - Chemistry
Asked by kaushikmaneesh109 | 31 Oct, 2018, 09:09: PM
ANSWERED BY EXPERT
