Question

What's the lewis structure for Calcium Carbide that's CaC2..... Need to actually figure out the bond order....?

Answer 1

I'm not sure this is right, but
.. ..
C ::C:
..
:Ca:
.. *to get the 4e-
from C=8 Ca=2(times 2) so 8+4-8=4
since Ca is ionic and by hydrogen I figured it wouldn't go in the center.

Answer 2

let me tell u the trick to find out the bond order
by calculating num of electron u can figure it out v.easily


no. of electron bond order
1 0.5
2 1
3 0.5
4 0
5 0.5
6 1
7 0.5
8 0
9 0.5
10 1
11 1.5
12 2
13 2.5
14 3
15 2.5
16 2
17 1.5
18 1
19 0.5
20 0


if u notice dat there is periodicity from 1 to 8 electron and den onwards it starts increasing 0.5 till 14electron and den start decreasing till 20 eletron by 0.5

some imp. points
# always start from 0.5 and remember 8th electron, it must be zero
# den increase 0.5 till u came to 3(bond order)
# den decreae it by 0.5 till u came to zero
# 0 bond order means molecule cannot exist