Question

element A belongs to group 16 and 5th period, its atomic number is?

Answer 1

PERIOD-5 MEANS IT HAS 5 SHELLS.
GROUP 16 MEANS IT HAS 16 VALANCE ELECTRONS
THEREFORE, ATOMIC NUMBER OF THE ELEMENT IS 2+8+8+18+16=52

Answer 2

Answer:

The element of group 16 and 5th period will have atomic mass = 52 ( Tellurium)

Explanation:

The element belongs to group 16th which means it will be having 6 electrons in its outermost shell or valence shell .

5th period indicates that the element will be having electrons in 5 shells

∴ The atomic number of the element will be = 2+ 8+ 18+ 18+ 6 = 52

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