Spec 1CH0
Revise Edexcel GCSE Chemistry 2.2.2 Periods, groups, metals and non-metals with the question bank, lessons, revision guides, and flashcards.
1.16 Explain how the position of an element in the periodic table is related to its atomic number and to its number of protons. 1.17 Describe the periodic table as an arrangement of elements in periods and groups in order of increasing atomic number. 1.18 Classify elements as metals or non-metals from their position in the periodic table, and explain the classification in terms of atomic structure. Assessed at both Foundation and Higher tier.