cau 7 :su lai hoa la j?quan niem lai hoa giai quyet van de j trong cau tao nguyen tu va lk hoa hoc?
neu cac kieu lai hoa?
+su lai hoa la su xen fu cu cac dam may (e) tron lan nhau (hay to hop lan nhau)
thanh cac dam may lai hoa.
+quan niem fep lai hoc da giai thich dc hinh dang hoc hoc cua nguyen tu.
cac dang lai hoa :SP,SP2,SP3.
