English, 03.06.2021 17:20 ddcope1030

Which of the following is a characteristic of elements in group 2 of the periodic table? a, They all have 2 neutrons
b, They all form 2 isotopes
c, They all have 2 electrons in the valence shell
d, They all have 2 electron shells
e, They all very unreactive

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Which of the following is a characteristic of elements in group 2 of the periodic table? a, They al...