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Why do elements in a vertical column of the periodic table have similar chemical properties? They have the same number of outer electrons. They have equal numbers of protons and electrons. They have the
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Why do elements in a vertical column of the periodic table have similar chemical properties?

They have the same number of outer electrons.


They have equal numbers of protons and electrons.


They have the same number of electrons


They have the same number of protons.

User Sourygna
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1 Answer

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Answer:they have the same number of electrons in the valence shell

Step-by-step explanation:

User Austin York
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