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Worksheet: Periodic Trends 儲存 單詞卡 學習 測試 配對 Which statement best describes group 2 elements as they are considered in order from top to bottom of the Periodic Table? 點擊卡片即可翻轉 👆 The number of principle energy levels increases, and the number of valence electrons remains the ...
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periodic law (trends) specific patterns throughout the PT; when the elements are arranged in order of increasing atomic mass, certain sets of properties recur periodically increases, decreases Atomic radius ___ down a group and ___ across a period. decreases, increases Ionization energy & Electro...
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方塊 新功能 配對 The alkali metals 點擊卡片即可翻轉 👆 Group 1: Li, Na, K, Rb, Cs, Fr. Extremly reactive, low density soft metals. 點擊卡片即可翻轉 👆 1 / 15 markfisher Quizlet上的頂尖創作者 · 學生們也學習了 Solutions Vocab ...
Periodic table trends 學習 測試 配對 Why does atomic radius decrease across a period? 點擊卡片即可翻轉 👆 Number of protons in the nucleus and positive nuclear charge increase, so the nucleus more strongly attracts orbital electrons and pulls them closer to it, while electron shielding remains ...