Which explains the change in ionization energy that occurs between removing the first and second electrons from an atom?

a)the ionization energy decreases because the ratio of the protons to electrons increases.

b)the ionization energy increases because the ratio of the protons to electrons increases.

c)the ionization energy decreases because the ratio of the protons to electrons decreases.

d)the ionization energy increases because the ratio of the protons to electrons decreases.

Compare and contrast physical changes with chemical changes.

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.