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Chemistry, 13.04.2020 00:48 oliviablue7535

Use the drop-down menus to complete the statements.
A vertical column of elements in the periodic table is called a .
A horizontal row of elements in the periodic table is called a .
Atoms of elements in the same group have the same .
As you move from left to right on the periodic table, the atomic number .

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A vertical column of elements in the perio...
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