Question 139
Look at this list of substances.
$Al$, $Ar$, $Au$, $C$, $C_6H_{12}O_6$, $Cl_2$, $Cu$, $Fe$, $H_2O$, $Na$, $N_2$, $NH_3$, $O_2$, $P_4$, $S_8$, $SO_3$.
Classify the elements in this table. Use the Periodic Table on page 148 to help you.
| Metallic elements | Non-metallic elements |
|---|---|
| ___ | ___ |
$Al$, $Ar$, $Au$, $C$, $C_6H_{12}O_6$, $Cl_2$, $Cu$, $Fe$, $H_2O$, $Na$, $N_2$, $NH_3$, $O_2$, $P_4$, $S_8$, $SO_3$.
Classify the elements in this table. Use the Periodic Table on page 148 to help you.
| Metallic elements | Non-metallic elements |
|---|---|
| ___ | ___ |
