The atomic radii and ionic radii for three Period 3 elements are given below. For element X, the atomic radius is $0.118\,\text{nm}$ and the ionic radius is $0.053\,\text{nm}$. For element Y, the atomic radius is $0.099\,\text{nm}$ and the ionic radius is $0.180\,\text{nm}$. For element Z, the atomic radius is $0.160\,\text{nm}$ and the ionic radius is $0.072\,\text{nm}$. On the basis of this data, which statement is correct?
- AElement X has lower electrical conductivity than element Y.
- BElement Y has a higher melting point than element X.
- CElement Y and element Z react to form an ionic compound.
- DElement Z forms ionic compounds by gaining electrons.