Bond angle

-終場ソ使者-

今日呀sir問我地
What is the bond angle of H₂O and NH₃?Why?
點解?我有考慮過好多因素,但都唔知點解-.-

-終場ソ使者-

H₂O
　O
/     \
H      H
中間隻角幾多度-.-
∠H-O-H
我知係104.5',不過唔知點解

-終場ソ使者-

我就係想知點計-.-

-終場ソ使者-

其實個principle我知,
In CH4 cause,
δ-俾個proton(form hydrogen)搶左,
bond pairs electrons之間既repulsive force細左
角度比較大
In NH3 cause,
δ-"還番"俾佢,bond pairs electrons既repulsive force大左
bond angle較細
唔知岩唔岩,自己諗
就係唔知點計-.-
YU兄,幫幫手[[tk_32]]