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rusak2 [61]
3 years ago
12

A horizontal row of elements in the periodic table is known as a group or period

Chemistry
2 answers:
BaLLatris [955]3 years ago
7 0

A period in the periodic table is a horizontal row. All elements in a row have the same number of electron shells. Each next element in a period has one more proton and is less metallic than its predecessor.

bekas [8.4K]3 years ago
6 0

A period in the periodic table is a horizontal row. All elements in a row have the same number of electron shells. Each next element in a period has one more proton and is less metallic than its predecessor.



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