Metals and non-metals in the periodic table
2 marks · NormalState two differences between metals and non-metals as found in the periodic table or their oxides.
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Metals are found on the left of the periodic table, non-metals on the right. Metals form basic oxides, non-metals form acidic oxides.
Also accept: Metals conduct electricity, non-metals usually do not; metals are shiny, non-metals dull (if either is relevant to the syllabus)
Common mistakes: Giving physical properties not based on periodic table or oxide chemistry
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Marking points
B1 · 1 mark · Correctly states a difference based on table position (left/right or group/period)
B1 · 1 mark · Correctly states a difference based on oxide character (basic/acidic)
Worked solution
Metals are located on the left side of the periodic table; non-metals are on the right. Metals usually form basic oxides, while non-metals form acidic oxides.