Question

List the symbols for the atoms in each formula and

give the number of each.

1) 2C2H6 2) 4MgO 3) 5P4O10

4) 2NH3 5) 2Al(OH)3 6) H2O2​

Answer 1

1-HYDROGEN

2-HELIUM

3-LITIUM

4-BERRYLIUM

5-BORON

6-CARBON

7-NITROGEN

8-OXYGEN

9-FLUORINE

10-NEON

11-SODIUM

12-MAGNESIUM

13-ALUMINIUM

14-SILICON

15-PHOSPHORUS

16-SULPHUR

17-ARGAN

18-CHORLINE

19-POTASSIUM

20-CALICUM