CBSE Class 9 Answered
What is covalency? Explain the formation of covalent bond with the help of an example.
Asked by Topperlearning User | 04 Apr, 2016, 10:23: AM
Expert Answer
Covalency
- The number of electrons shared by one atom of an element to achieve the nearest inert gas electron configuration is known as its covalency.
Formation of Covalent Bond
- When both atoms in a reaction need to gain electrons to complete their octet, sharing of electron takes place.
- Let us study how the chlorine molecule is formed to understand the formation of covalent bond.
Formation of chlorine molecule
- A chlorine atom has 7 electrons in the outermost shell.
- When two chlorine atoms combine, they share one electron each to form a shared pair of electrons, thus completing both their octets. Hence, the chlorine molecule exists as Cl2.
Answered by | 04 Apr, 2016, 12:23: PM
Application Videos
-
Valency
This video explains the about the valency of the elements. -
Distribution of electrons in orbits
This video explains the about the atomic number and distribution of electro... -
Orbits in An Atom
This video explains an Assertion and Reason Question based on distributi...
Concept Videos
-
Bohr's Model and Electronic Configuration
This video explains the Bohr's model of an atom and the electronic configur... -
Valence Electrons and Octet Rule
This video explains valence electrons and the duplet and octet rules. -
Structure of Atom - Exam Decoded - 3
This video contains questions on the Bohr's model of an atom, electronic co...
CBSE 9 - Chemistry
Asked by archanakad | 25 Aug, 2020, 08:59: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by Jaiwanthsiva | 15 Apr, 2020, 01:51: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by Jaiwanthsiva | 12 Apr, 2020, 11:47: AM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by snaik0856 | 29 Dec, 2019, 09:47: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by Regiesmalom99 | 18 Oct, 2019, 01:36: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by Vishalgarg1234 | 25 Nov, 2018, 03:21: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
. Then i have to first react Carbon with Oxygen then react that compond with calcium. So how will i know the valency of compound formed from reaction of carbon with oxygen. We can know the valency of elements from their atomic number and electronic configuration, but how can i know the valency of compound?
Please help,waiting for your reply,
Thank you. Asked by hk.sachdev | 12 Oct, 2018, 10:38: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by sshivali3333 | 19 Sep, 2018, 11:06: AM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by Topperlearning User | 13 May, 2014, 12:49: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by Topperlearning User | 13 May, 2014, 12:50: PM
ANSWERED BY EXPERT
