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Open it The number of protons that an atom contains is called its atomic number Original toplevel document (pdf)
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bithov - (no access) - AQA GCSE 9-1 Chemistry.pdf, p10
Summary
status | not learned | | measured difficulty | 37% [default] | | last interval [days] | |
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repetition number in this series | 0 | | memorised on | | | scheduled repetition | |
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scheduled repetition interval | | | last repetition or drill | | | | |
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Details
No repetitions