(a)[1]
Suggest what fluorine looks like.
(b)[3]
Determine the compound’s molecular formula.
(c)[3]
Complete the dot-and-cross diagram to display the electron arrangement in one molecule of NCl$_3$. Show only the outer electrons.
(d)[3]
Complete the dot-and-cross diagram to show the electron arrangement and charges of the ions in lithium chloride.
(e)[3]
Explain, in terms of attractive forces between particles, why LiCl is solid at room temperature but NCl$_3$ is a liquid with a relatively low boiling point.