The following are s-block elements except

Assessment: WAEC SSCE - Chemistry - 1989 (Objective) Subject: Chemistry

Question 1 Report

The following are s-block elements except
Answer Details
The s-block elements are the elements in Group 1 and Group 2 of the periodic table, plus hydrogen and helium. They are called "s-block" elements because their valence (outermost) electrons are in the s subshell of their atoms. Aluminium is not an s-block element. It is located in Group 13, which is part of the p-block elements. Its valence electrons are in the p subshell of its atoms. Therefore, the answer is aluminium.
Read lesson note on Metals And Their Compounds (JAMB)
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