this is help to get an idea about chemistry paper 1 and it also help you to improve your chemistry knowledge by practicing these past papers .i’m sure you can achieve your target grades by studying this past papers.
(a) (i) The electronic structure of a magnesium atom is shown below.
Use the correct answer from the box to complete each sentence.
electrons neutrons protons shells
The nucleus contains protons and ____________________ .
The particles with the smallest relative mass that move around the nucleus are
called ____________________ .
Atoms of magnesium are neutral because they contain the same number of
electrons and ____________________ .
(3)
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