Chemistry, asked by surekhalanjewar, 11 months ago

the atomic number of an element is 20 in modern periodic table with element is placed in​

Answers

Answered by sunitagupta54637
1

Answer: Mendeleve periodic table

Explanation:

Answered by nishantkrhqhqhq
5

Answer:

2nd group 4th period(Calcium),this is the answer

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