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What do elements in a group on the periodic table have in...
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Chemistry, 25.05.2020 22:59 thepantsgirl
I NEED HELP PLEASE, THANKS! :)
What do elements in a group on the periodic table have in common?
They have the same number of neutrons in the nucleus.
They have similar chemical properties.
They have the same atomic mass.
Their valence electrons have the same energy level.
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