In looking at the trend for electronegativity moving from left to right on the perioidic table, which reason below is the correct explanation of the trend?



The nucleus is getting stronger and pulling harder on the electrons.


The nucleus is getting weaker and pulling less on the electrons.


More energy levels are being added and shielding the pull of the nucleus.


Fewer energy levels surround the nucleus and allow it to pull harder on the electrons.

You're going to get yourself banned for spamming this board.

If you go back and post what YOU THINK about each one, a tutor with that expertise might be able to help.

Well, since Sarah never replied regarding her umpteen chem posts, I'll remove them.

Students need to state what THEY THINK in addition to posting their assignments.

To determine the correct explanation for the trend in electronegativity moving from left to right on the periodic table, we can examine the periodic trends and the factors that influence electronegativity.

Electronegativity is the ability of an atom to attract electrons towards itself in a chemical bond. It increases as you move from left to right across a period on the periodic table.

The correct explanation for this trend is: "The nucleus is getting stronger and pulling harder on the electrons."

The strength of the nucleus is determined by the number of protons it contains. As you move from left to right across a period, the atomic number of the elements increases, which means the number of protons in the nucleus increases. This increase in positive charge makes the nucleus stronger and able to pull electrons towards it with greater force.

Therefore, when explaining the trend in electronegativity on the periodic table, it is important to understand that the increasing strength of the nucleus, due to the increasing number of protons, is the primary reason for the trend.