An element Y has the electronic configuration 1s22s22p6623p4. To what period does it belong in the periodic table?

Assessment: WAEC SSCE - Chemistry - 2002 (Objective) Subject: Chemistry

Question 1 Report

An element Y has the electronic configuration 1s22s22p6623p4. To what period does it belong in the periodic table?
Answer Details
The electronic configuration of an element provides information about its position in the periodic table. The period of an element is determined by the highest energy level occupied by electrons in the ground state. In the given electronic configuration, the highest energy level occupied by electrons is the third energy level. Therefore, element Y belongs to period 3 of the periodic table.
Read lesson note on Atomic Structure And Bonding (JAMB)
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