Answer to Question #59355 in Inorganic Chemistry for muhammad umar

Question #59355
which of these is not a s-block element?
a)k
b)ca
c)zn
d)mg
1
Expert's answer
2016-04-20T10:59:05-0400
S-block element - 14 elements that are located in the leftmost part of the modern table Mendeleva (1 and 2 columns) and Helium, which is located in the upper right corner of the table. Potassium, Calcium and magnesium are the first and second column, and Zinc - is placed on a column 12, which indicates that the zinc is not an element S-block.
Also, all the valence electrons are s-elements are in s-orbitals. This can be confirmed by the example of potassium, calcium, magnesium; and Zinc the valence electrons are in the d-orbitals.
Answer: c (Zn)

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