AQA · Chemistry · 8462
GCSE Chemistry: Metals and non-metals
Atomic structure and the periodic table · AQA GCSE Chemistry (8462), specification point 4.1.2.3. Cards are generated from the exam board's own specification for "Metals and non-metals", and every card links back to the page it came from. Specification © AQA — used with attribution.
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What type of ion do metals form when they react?
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Positive ions — metals lose electrons when they react.
How are non-metals defined in terms of ion formation?
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Non-metals are elements that do not form positive ions.
Are most elements in the periodic table metals or non-metals?
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Metals — the majority of elements are metals.
Where are metals found in the periodic table?
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To the left and towards the bottom.
Where are non-metals found in the periodic table?
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Towards the right and top.
Why do metals sit on the left of the periodic table?
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They have few electrons in their outer shell, so they lose them easily to form positive ions.
What determines how an element reacts?
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The arrangement of electrons in its atoms, which depends on its atomic number.
Why don't non-metals form positive ions?
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Their outer shells are nearly full, so they gain electrons (or share them) rather than lose them.
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