What is the number of valence electrons in the last element of 3rd period? (1)
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Answer:
The last element in the third period is argon and there are 8 valence electrons .
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2
Answer:
The number of valence electrons of the last element in 3rd period is 8 and the element is Argon
Explanation:
Valence electron is the number of electron present in the outermost shell of an atom
electronic configuration is 2/8/8
as the outermost shell consist of 8 electrons hence valence electrons are 8
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