For BeCl2: Be (E.N. 1.5) is less electronegative than Cl (E.N. 3.0) → Be is the central atom
Group Valence Electrons
Be 2A 1 × 2 e– = 2 e–
Cl 7A 2 × 7 e– = 14 e–
Total: 16 valence e–
The Lewis structure for BeCl2 is:
Why don't we draw double bonds between the Be atom and the Cl atoms in BeCl2?
A) That would give positive formal charges bo the chlorine atoms and a negative formal charge to the beryllium atom.
B) There aren't enough electrons.
C) That would result in more than eight electrons around beryllium.
D) That would result in more than eight electrons around each chlorine atom.
E) That would result in the formal charges not adding up to zero.
Frequently Asked Questions
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