[tex]\boxed{{\text{Polonium}}}[/tex] has the weakest attraction for electrons in a chemical bond.
Further Explanation:
Electronegativity
The tendency of an element to attract electrons towards itself in a chemical bond is known as electronegativity. Stronger the tendency for electron attraction, more will be the electronegativity of the element and vice-versa.
Periodic trends
Period: Electronegativity increases from left to right due to the increase in the nuclear charge in the successive members.
Group: Electronegativity decreases from top to bottom due to the increase in the atomic size of the successive members of the group.
Sulfur, selenium, tellurium, and polonium belong to the same group of the periodic table. Since the atomic size of the elements increases down the group, the electrons are far away from the atomic nucleus and experience a weaker attractive force with the nucleus of the atom. So there is very little attraction for the incoming electron in case of larger atoms as compared to the smaller ones and therefore electronegativity decreases from top to bottom in a group.
Polonium is present at the bottom of its group so it has the least electronegativity and therefore weakest attraction for electrons in a chemical bond.
Learn more:
- Rank the elements according to first ionization energy: https://brainly.com/question/1550767
- Write a chemical equation representing the first ionization energy for lithium: https://brainly.com/question/5880605
Answer Details:
Grade: High School
Chapter: Periodic properties of elements
Subject: Chemistry
Keywords: polonium, sulphur, tellurium, selenium, electronegativity, attraction, chemical bond, electrons, group, period, tendency.
