The atomic number of an element is 20. In which period of the modern period
table, could this element be placed? Why? How will you decide whether the
element is a metal or a non-metal?
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4
Answer:
As the electronic configuration of 20 will be (2,8,8,2) its valency is 2 and thus it belongs to group 2 and the no. of shells present are 4 n therefore it belongs to period 4. As the elements placed towards the right-side or present in the s-block are metals, therefore this element is a metal.
Answered by
1
Answer:
As the electronic configuration of 20 will be (2,8,8,2) its valency is 2 and thus it belongs to group 2 and the no. of shells present are 4 n therefore it belongs to period 4. As the elements placed towards the right-side or present in the s-block are metals, therefore this element is a metal.
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