Chemistry, asked by asmitadey503, 10 months ago

What is meant by (a) a group and (b) a period in the periodic table?

Answers

Answered by yasmineh2006
2

Answer:

a) A groups are the vertical columns with roman numerals on top to mark the Group number.

b) A period on the table is a horizontal row. The first period has only one element in it, which is Hydrogen (H)

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