An element has the following electronic configuration: [Kr]4d15s2
(a) What period does it belong to?
(b) What is its group number? (Use group numbers from 1 to 18)
(c) What kind of element is it? (Main group metal, transition metal, metalloid, nonmetal?)
(d) How many unpaired electrons are there in an atom of this element?
(e) What element has this electronic configuration? (attached figure)
Thank you!!! :)
Homework Answers
A. Belongs to 5th period
B. 3rd group
C. Transition metal
D. One unpaired electron in 4d orbital
E. Yttrium (Y) has this configuration with Atomic number 39.
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An element has the following electronic configuration:
[Kr]4d15s2
(a) What period does it belong to?
(b)...
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