Multiple Choice
Which element is the most electronegative?
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10. Periodic Properties of the Elements
Periodic Trend: Electronegativity
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Which of the following elements is the most electronegative?
A
N (nitrogen)
B
F (fluorine)
C
O (oxygen)
D
Cl (chlorine)
Verified step by step guidance1
Understand that electronegativity is a measure of an atom's ability to attract and hold onto electrons in a chemical bond.
Recall the general trend of electronegativity in the periodic table: it increases from left to right across a period and decreases down a group.
Identify the positions of the given elements in the periodic table: N (period 2, group 15), O (period 2, group 16), F (period 2, group 17), and Cl (period 3, group 17).
Compare the elements in the same period first: since F is to the right of N and O, it is more electronegative than both.
Compare elements in the same group: F is above Cl in group 17, so F is more electronegative than Cl due to being higher up in the group.
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