Chemistry
The atomic number of an element Z is 16. State
(a) the period to which it belongs.
(b) the number of valence electron(s) in the element.
(c) whether the element is a metal or a non-metal.
(d) State the formula of the compound between Z and hydrogen.
Periodic Table
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Answer
(a) The element belongs to 3rd period.
Reason — The element Z has atomic number 16 and so the electronic configuration will be 2, 8, 6. The number of shells present in an atom determines it's period. Hence, Z will belong to 3rd period as it has three shells.
(b) 6 [∵ electronic configuration is 2, 8, 6]
(c) Z is a non metal.
(d) H2Z
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