Question

1. choose the best answer. what is one half of the distance between the nuclei of two atoms of the same element? ionization electrostatic attraction atomic radius ionization energy 2) choose the best answer. what is established between a proton and electron? atomic radius electrostatic attraction ionization ionization energy

Explanation:

1. The atomic radius is defined as one - half of the distance between the nuclei of two atoms of the same element. Ionization is the process of losing or gaining electrons. Electrostatic attraction is a force (not a distance measure). Ionization energy is the energy required to remove an electron from an atom.
2. A proton has a positive charge and an electron has a negative charge. Oppositely charged particles experience electrostatic attraction. Atomic radius is a measure of the size of an atom. Ionization is a process (not a force between a proton and an electron). Ionization energy is the energy for electron removal.

Answer:

1. atomic radius
2. electrostatic attraction