Top answers

Chemistry
A Level

What is a radical?

A species with an unpaired electron, that is very reactive. For example, oxygen radicals involved in ozone depletion.

ES
Answered by Emma S. Chemistry tutor
2154 Views

Why is the Mg2+ ion smaller in radius than the Na+ ion?

To answer this we need to compare the two ions. The main difference between the two ions is the number of protons in the nucleus - Magnesium has one more proton than Sodium, however, if you look at the el...

JH
15015 Views

Describe, in three steps, how you would synthesise phenylethylamine (C6H5CH2CH2NH2) from methylbenzene, giving reagents and conditions for each step. For each step, state the type of reaction that occurs.

Methylbenzene (C6H5CH3) can be reacted with chlorine in the presence of UV light. The type of reaction is free radical substitution, and this produces phenylchloromethane ...

JH
Answered by James H. Chemistry tutor
8598 Views

What is electronegativity?

It is a measure of how much a neutral atom wants an electron, metals have very low electronegativity, they almost always give electrons up, whereas non-metals usually uptake electrons, so they have a high...

MF
2412 Views

What are the shape of p orbitals?

The shape is a figure of 8 across all three axis, with a node at the origin

GD
Answered by George D. Chemistry tutor
2412 Views

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