1 2 Teeth and Function 3 Tooth structure 4 Dental Problems.
Presented by: Asfiya Afsar Nadia Barak Catriona Hagley SMOKING CESSATION.
Z i n c 鋅. Basic info. ◆ Symbol: Zn ◇ Atomic no.: 30 ◆ Has 5 stable isotopes (64, 66, 67, 68, 70 Zn) ◇ 24 th most abundant element in Earth’s crust ◆
