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Describe briefly the nature of metallic bonding and use this to explain why metals are malleable (can be hammered into shape) and conduct electricity

Metallic bonding occurs as a result of the electrical attraction forces between the protons in the nuclei of the metal species and the delocalised electrons (which form a sea of electrons surrounding the arr...
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State what is meant by the term 'first ionisation energy' and explain why the first ionisation energy of barium is lower than that of calcium

First ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms, to produce one mole of gaseous ions each with a (+1) charge. Barium has more energy levels than ...
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Answered by Varsha S. • Chemistry tutor
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What makes phenol different from alcohols?

You will need an underlying knowledge of the structure of benzene to answer this question. Benzene (C6H6) is formed from 6 carbon atoms arranged in a ring. [draw benzene] Each carbon atom has 4 bonding elect...
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Answered by David M. • Chemistry tutor
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Why are teachers now saying electrons are in orbitals? I thought they moved around shells?

Unfortunately, every year in school you are told that something from the previous year was not completely true, and had in fact been simplified...one of the major examples of this is orbitals. While the elec...
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Answered by Findlay M. • Chemistry tutor
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What is the definition of structural isomerism and what are the different types?

Structural Isomerism: Molecules with same molecular formula and different structural formula. Different types: Positional, chain, functional group
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Answered by Ellie A. • Chemistry tutor
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