Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

give reasons

a.in hydrogen chloride the valency of the element chlorine is considered as one.
b.certain metals exhibit more than one valency hence showing 'variable valency'

need urgently


 (a)    hydrogen has 1 electron & chlorine has 7 electrons in its valence shell 
hydrogen removes 1 electron & gets stabilised whereas chlorine accepts the ejected electron from hydrogen atom & achieves the octet to get stabilised in hydrogen chloride molecule . as chlorine accepts 1 electron so valency of it is 1
 (b)   the metals which shows more than one valency are generally transition metals . the  transition metals have incompletely filled d orbitals . so they exhibit variable valencies
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts