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Explain why Magnesium has a greater second ionisation energy than strontium

Magnesium is a smaller atom with a smaller radius than strontium, this means the electron has a greater attraction to the nucleus. Also as strontium has more orbitals the electron has more shielding from the...
KW
Answered by Kelvin W. • Chemistry tutor
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Give the characteristics of a homolgous series.

A homologous series is a group of compounds that share the same functionl group. Members of the same series have similar chemical properties and show a gradation in physical properties. Each member differs f...
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Answered by Jessica W. • Chemistry tutor
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Why does ionisation energy increase across Period 3?

Ionisation energy is the energy required to remove the valence electron of an element/atom. The reason this increases is because, as we go across the period, the atomic number of the element increases. This ...
SF
Answered by Shahana F. • Chemistry tutor
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Explain what happens to the boiling and solubility of alcohols as their chain length increases

Boiling point: As alkyl chain length increases, boiling point increases as there are surface area contacts and so stronger induced dipole-dipole intermolecular forces – more energy needed to overcome leading...
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Answered by Azreen A. • Chemistry tutor
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Can you help me with the question: "State and explain the trend in boiling temperature of hydrogen halides down the group"?

So the trend is a high boiling point for HF, then a sharp decease to HCl, and then a steady increase up to HI. HF is a special case because they are held together by hydrogen bonds (as well as permanent dipo...
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Answered by Marie Y. • Chemistry tutor
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