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Chlorine's outer electrons are closer to the nucleus than iodine, so greater attraction from the positive nucleus making it easier to gain an electron.

The reactivity of Group 1 metals increases as we move down the periodic table.As we move down the group 1 elements the number of electron shells increases. This means that the electrostatic forces of attract...

Both empirical and molecular formula give information about what different elements make up a compound. The empirical formula shows the simplest whole number ratio of the number of atoms of different element...

Titrate the acid of known concentration against the alkali of unknown concentration to find the volume of acid needed to neutralise a known volume of the alkali. Remember to use an appropriate indicator and ...

Paper chromatography separates a mixture of solutions by their various solubilities. The less soluble components have a higher affinity to the stationary phase (the paper strip) while more soluble components...