test 2. Complete the box
Given Element Name
1.Mercury
2._______
3._______
4. Silver
5. Strontium

Element Symbol
1.______
2.K
3.Ta
4.______
5.______

Atomic Number
1.80
2._____
3.73
4.______
5.38

Atomic Mass
1.______
2.39
3.______
4.108
5.______​