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Biology, 22.10.2019 09:50 dundiedoo7196

Describe the trends for valence electrons across a period and down a group within the periodic
table

describe the trend for atomic mass across a period and down a group within the periodic table.

describe the trend for atomic radii across a period and down a group within the periodic table

describe the trend for reactivity across a period and down a group within the periodic table.

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Describe the trends for valence electrons across a period and down a group within the periodic
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