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5. Without looking at the periodic table, identify the period, block, and group of the element that has the electron configuration [Ar]3d74s².

5. Without looking at the periodic table, identify the period, block, and group of the element that has the electron configuration [Ar]3d74s².
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5 votes
5. Without looking at the periodic table, identify

the period, block, and group of the element that
has the electron configuration [Ar]3d74s².

asked
User Serge Pedroza
by
8.1k points

1 Answer

4 votes

Answer:

The electron configuration [Ar]3d74s² belongs to the element Chromium (Cr).

Chromium is located in period 4, block d, and group 6 of the periodic table.

answered
User Ton Snoei
by
8.6k points
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