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Unit 8 · The Periodic Table

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Cambridge IGCSE Chemistry 0620 · 61 questions

Q12The Periodic Table

Elements in the Periodic Table are arranged in order of

(a)increasing mass number
(b)alphabetical order
(c)date of discovery
(d)increasing proton (atomic) number

Correct answer: (d) increasing proton (atomic) number

Explanation: Rows are periods; columns are groups.

Related lesson

8.1 Arrangement of elementsThe Periodic Table

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ChemistryThe Periodic TableCambridge IGCSE Chemistry 0620