##BeCl_2## and his brother ##BeH_2##

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Discussion Overview

The discussion revolves around the bonding characteristics and structural similarities of beryllium dichloride (BeCl2) and beryllium dihydride (BeH2). Participants explore the nature of the bonds in these compounds, particularly focusing on the representation of bonds in a given solution and the implications of those representations.

Discussion Character

  • Homework-related
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants question whether the dotted lines and solid arrows in the solution represent hydrogen bonds and coordinate bonds, respectively.
  • There is a mention that hydrogen bonds typically involve specific atoms, namely fluorine (F), oxygen (O), and nitrogen (N).
  • One participant suggests that since BeH2 does not form hydrogen bonds, it may imply that the bonding is covalent.
  • Another participant states that both BeCl2 and BeH2 are covalently bonded, highlighting that one exists as a polymer and that atoms with lone pairs can form dative or coordination bonds.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the nature of the bonds in BeCl2 and BeH2, with some agreeing on the covalent nature of the bonds while others question the specific types of bonds represented in the solution. The discussion remains unresolved regarding the implications of the bond representations.

Contextual Notes

There are limitations in the discussion regarding the definitions of hydrogen bonds and covalent bonds, as well as the specific conditions under which these bonds are formed. The representation of bonds in the solution is also not fully clarified.

mooncrater
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Homework Statement


There was a question about ##BeCl_2## and ##BeH_2## which had a statement :
" Both have similar structure but different bonding. "
Which was marked correct.

Homework Equations

The Attempt at a Solution


The problem I am facing is that in the solution dotted lines are given between the B-H bond and solid arrows (##\longrightarrow##) for the B-Cl bond. So do those represent a hydrogen bond and a coordinate bond respectively?
 
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mooncrater said:

Homework Statement


There was a question about ##BeCl_2## and ##BeH_2## which had a statement :
" Both have similar structure but different bonding. "
Which was marked correct.

Homework Equations

The Attempt at a Solution


The problem I am facing is that in the solution dotted lines are given between the B-H bond and solid arrows (##\longrightarrow##) for the B-Cl bond. So do those represent a hydrogen bond and a coordinate bond respectively?
First hydrogen bond is for some specific atoms. What are those ?
 
F, O and N.
 
mooncrater said:
F, O and N.
So what does it imply to your attempt?
 
Raghav Gupta said:
So what does it imply to your attempt?
It doesn't form hydrogen bonds... so is it a covalent one?
 
mooncrater said:
It doesn't form hydrogen bonds... so is it a covalent one?
Both BeCl2 and BeH2 are covalently bonded.
The main difference is one exists as a polymer.
The atom having lone pair can form dative or coordination bonds.
 
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