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04.09.2021 10:44
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The elements in group 2 have similar chemical properties because each atom of these
The elements in group 2 have similar chemical properties because each atom of these elements has the same
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mimithurmond03
4,7(4 marks)
Number of electrons in the outer energy shell
twistedgamerhd12
4,6(78 marks)
The enclosed may help ....
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