Home › ICSE Class 10 › chemistry › Periodic Table, Periodic Properties and Variations of Properties › Which sequence is in INCREASING order of electro…
Which sequence is in INCREASING order of electronegativity?
AF > Cl > Br > I
BI > Br > Cl > F
CCl > Br > F > I
DF > Br > Cl > I
Answer & Solution
Correct answer: B. I > Br > Cl > F
1. F, Cl, Br and I all belong to Group 17, the halogens.
2. Electronegativity decreases down a group as atomic radius grows.
3. F sits at the top and has the highest electronegativity.
4. I sits at the bottom of this list and has the lowest electronegativity.
5. The increasing order goes I, then Br, then Cl, then F.
6. Only option B follows that order.
_Source: Selina Concise Chemistry ICSE Class 10, Ch 1 'Periodic Table' (aplustopper.com extract)_
Related questions
Across period 3 from Na to Cl, which property shows a continuous increase?In which pair does the SECOND member have a higher first ionisation energy than the FIRST?Which property best distinguishes a metal from a non-metal in the periodic table?Among the following oxides, which is the MOST acidic?Which set of elements forms an isoelectronic series (same number of electrons)?An element X has atomic number 17. Which of the following statements is FALSE?Why is the first ionisation energy of nitrogen HIGHER than that of oxygen?Which one of these does NOT belong to the halogen family?