C: 1 and 3 only
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An atom of which element gains three electrons when it forms an ion?
Part of the Periodic Table is shown. The letters are not the symbols of the elements. Which statement about the eleme…
Naturally-occurring bromine has a relative atomic mass of 80 and consists entirely of two isotopes of relative atomic…
The sentence describes two metals and their oxides. Metal X could be copper because its oxide is ......1.... and meta…
Which gas could be used to convert copper(II) oxide to copper?
Aluminium and copper are often used to make coins but iron is not. Which statement explains this?