Question

a student thinks that halogens are highly reactive because their electrons are weakly attracted to their nuclei. which is evidence that disputes this students idea?
halogens react with alkali metals.
halogens cannot react with noble gases.
halogens tend to attract electrons when bonding.
halogens have a full octet of electrons.

Explanation:

The student claims electrons in halogens are weakly attracted to nuclei. But halogens are highly electronegative and tend to attract electrons when bonding, showing a strong attraction between the nucleus and electrons in bonding situations. Reacting with alkali - metals doesn't disprove the weak - attraction idea. Not reacting with noble gases is not relevant to the claim about electron - nucleus attraction. And halogens do not have a full octet of electrons.

Answer:

Halogens tend to attract electrons when bonding.