cau 4 neu cac dai luong dac trung cho lien ket hoa hoc?

+nang lg lien ket:la nang lg dc giai phong khi lk hoa hoc dc hinh thanh tu nhung nguyen tu co lap

+do dai lk:do dai lk dc xac dinh bang khoang cach giua hai hat nhan cua hai nguyen tu tham gia lk.

do dai lk phu thuoc vao ban chat cua nguyen tu tham gia lk va ban chat cua moi lk.

do dai lk cang nho thi lk cang ben.

+goc hoa tri :la goc tao boi hai nua dg thang xuat fat tu hat nhan cua hai nguyen tu lk truc tiep voi nguyen tu do .

biet do dai lk va goc hoa tri co the xa~ dinh dc cau hinh hinh hoc cua phan tu.

Do boi cua lk:la so moi lk dc hinh thanh giua hai nguyen tu cho trc.