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Chemistry
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Diamond is very hard because:

It is a giant covalent structure.

Answered by Rifat M. Chemistry tutor
2356 Views

State and explain the conditions for cis/trans isomerism and how this differs from E/Z isomerism.

cis/trans isomerism requires a double bond for restricted rotation about the bond, two different groups on each carbon of the double bond and at least one of the groups on each carbon of the double bond a...

Answered by Ele C. Chemistry tutor
12034 Views

Explain why potassium has a greater first ionisation energy than rubidium.

The outer electron of potassium is closer to its nucleus than the outer electron for rubidium, as it has a stronger attractive force between the electron and the potassium nucleus. The outer electron for ...

Answered by Arinjay J. Chemistry tutor
12489 Views

Draw a diagram that represents the electronic arrangement of a fluorine atom.

Electrons are arranged in different shells (sometimes described as an energy levels) around the nucleus with the innermost shell being filled first and then working outwards. The first shell can hold a ma...

Answered by Izabella A. Chemistry tutor
11807 Views

In terms of structure and bonding explain why the boiling point of bromine is different from that of magnesium

Bromine exists as a simple molecular structure- the Br2 molecules are held together using Van der Waals forces. Whereas Magnesium is a metal and is held together using metallic bonding. Metalic...

Answered by Mubeena A. Chemistry tutor
19476 Views

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