Chemistry - Study Mode

[#346] The most reactive among the halogens is
Correct Answer

(A) Fluorine

Explanation

Solution: Fluorine is the most reactive element of all in Group 7.

[#347] Which one element has the lowest electronegativity value
Correct Answer

(C) Francium

Explanation

Solution: The element with the lowest electronegativity value is francium, which has an electronegativity of 0.7.

[#348] Which one element has the highest electronegativity value
Correct Answer

(D) Fluorine

Explanation

Solution: Electronegativity increases from bottom to top in groups, and increases from left to right across periods. Thus, fluorine is the most electronegative element, while francium is one of the least electronegative.

[#349] The element with highest ionization potential is
Correct Answer

(C) Helium

Explanation

Solution: The element with highest ionization potential is helium.

[#350] Which of the following has no unit?
Correct Answer

(A) Electronegativity

Explanation

Solution: Electronegativity has no unit.