in the following tables are given eight elements a,b,c,d,e,f,g and h of the modern periodic table with the atomic numbers of the elements in parenthesis.
what is the electronic configuration of F?
what is the number of valence electrons in the atom of F?
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35
Answer:
(A) Electronic configuration of F is
K L M
F12- 2 8 2
(B) There are 2 valence electrons in the atom of F.
Explanation- Valence electrons are those electrons which present in the last shell.
(C) There are 3 shells in the atom of F.
(D) We know that atomic size increases from top to bottom in a group due to increment in shells. So the order will be H>G>F>E.
(E) We know that atomic size increases from top to bottom in a group and decreases from left to right in a period. So B has the bigger atomic size.
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Answered by
2
Answer:
1)K L M
2 8 2
2)There are 2 valence electrons in F
Explanation:
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