Chemistry, asked by crkrishna022, 3 months ago

the atomic number of an element is 20 in which the period of the modern periodic table would be the element placed why how will you decide whether the element is metal or nonmetal​

Answers

Answered by vern0603
4

Answer:

The element having atomic number 20 is placed in the Group IIA and 4th period of the periodic table. The element is Calcium, Ca.

Explanation:

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