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12 January, 04:05

Elements in the same group have similar properties because they have the same number of?

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  1. 12 January, 04:22
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    Because their electronic configurations have the same number of electrons in the outermost shell.
  2. 12 January, 07:48
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    Elements in the same group in the periodic table have similar chemical properties. This is because their atoms have the same number of electrons in the highest occupied energy level. Group 1 elements are reactive metals called the alkali metals.
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