Which element is a solid at 1400K? You need to use the Chemistry Reference Tables (Table S) to answer the question. Note: Think about the phase changes that happens at the melting point and boiling point of a substance and which phase will exist above and below the melting and boiling points. Ag
Al
Ca
Ni

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.

4d^55s^1 ( third choice)