The table below gives the physical properties of three elements, X, Y and Z. Element X: melting point $-7\,^{\circ}\text{C}$, boiling point $59\,^{\circ}\text{C}$, density $3.12\,\text{g cm}^{-3}$. Element Y: melting point $98\,^{\circ}\text{C}$, boiling point $883\,^{\circ}\text{C}$, density $0.97\,\text{g cm}^{-3}$. Element Z: melting point $649\,^{\circ}\text{C}$, boiling point $1107\,^{\circ}\text{C}$, density $1.74\,\text{g cm}^{-3}$. Which elements might X, Y and Z be?
- AX = $\text{Br}_2$, Y = Al, Z = Si
- BX = $\text{Br}_2$, Y = Na, Z = Mg
- CX = $\text{I}_2$, Y = Mg, Z = Na
- DX = $\text{I}_2$, Y = Si, Z = K