Chemistry Questions

Cations are bigger/smaller than their neutral atoms.

Anions are bigger/smaller than their neutral atoms.

Put in order from smallest to largest radius: Mg, Si, S, or Na.

Put in order from smallest to largest radius: He, Xe, Ar.

Put in order from low to high electronegativity (EN): Al, Ne, Ca, Se.

Put in order from low to high ionization energy (IE): I, Cr, Rb, N.

Cations (+) are smaller than their atoms since you are removing valence electrons that are farther from the nucleus and anions (−) are larger than their atoms since adding extra electrons increases electron-electron repulsions.

• True

• False

A cation is where

• There are more electrons than protons

• Protons and electrons are equal

• The number of electrons are less than the number of protons

If a neutral atom of Boron has 5 protons and 5 electrons how many electrons would a +3 cation of Boron have?

• 2

• 3

• 7

• 8