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Which one of the following alternatives lists the atoms of aluminium, calcium, sulfur and chlorine in order of increasing electronegativity? A - VCE - SSCE Chemistry - Question 16 - 2006 - Paper 1
Question 16
Which one of the following alternatives lists the atoms of aluminium, calcium, sulfur and chlorine in order of increasing electronegativity? A. (lowest) Al, S, Cl,... show full transcript
Worked Solution & Example Answer:Which one of the following alternatives lists the atoms of aluminium, calcium, sulfur and chlorine in order of increasing electronegativity? A - VCE - SSCE Chemistry - Question 16 - 2006 - Paper 1
Step 1
Identify Electronegativity Trends
Answer
Electronegativity is the tendency of an atom to attract electrons in a bond. Generally, electronegativity increases across a period from left to right and decreases down a group in the periodic table. Understanding these trends will help determine the order of electronegativity for the given elements.
Step 2
(lowest) Ca, Al, S, Cl (highest)
Answer
Among the given elements, Calcium (Ca) is the least electronegative as it is an alkaline earth metal, followed by Aluminium (Al), which has a moderate electronegativity. Sulfur (S) comes next with higher electronegativity compared to both Ca and Al, and finally, Chlorine (Cl) is the most electronegative. Therefore, the correct increasing order of electronegativity is Ca, Al, S, Cl.