Question

What are the important features of the elements in a period?​

Answer 1

Answer:-

Elements are arranged in the increasing order of atomic numbers. Elements in the modern periodic table are arranged in 7 periods and 18 groups. Horizontal rows are called periods and vertical columns are called groups. Elements are placed in periods based on the number of shells in their atoms.

Answer 2

Answer:

elements are arranged in the increasing order to atomic number. elements in the modern period of table are arranged in 7 periods and 18 group.

Explanation:

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