Question

This is a Fill in the blank excersise. The fullstops mean that a blank.
The elements in the Periodic Table are organised in the same way as the electrons fill the
shells. Shells fill from...
... to......
across
the.........
of the Periodic Table.
The first shell fills up first from.....
to helium.
• The second shell fills next from lithium to.... .
• Eight .....
go into the third shell from sodium to argon.
Please Help and give the correct answer.
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Answer 1

Explanation:

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