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3 September, 16:42

Which list of elements from Group 2 on the Periodic Table is arranged in order of increasing atomic radius?

(1) Be, Mg, Ca (3) Ba, Ra, Sr

(2) Ca, Mg, Be (4) Sr, Ra, Ba

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Answers (2)
  1. 3 September, 17:01
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    According to the periodic table, as you go down a group, atomic radius increases due to increasing number of electron shells. Therefore, your answer (1) Be, Mg, Ca.
  2. 3 September, 17:08
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    1) Be, Mg, Ca Be, Mg, Ca, Sr, Ba, Rb are increasing layers
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