Match each vocabulary word with its definition. match the items in the left column to the items in the right column. 1. periodicity unlike charges 2. shell like charges 3. nonmetals charge on a neutron 4. noble gases location of an electron 5. neutral high ionization energies 6. repel repeating nature of atomic structure 7. attract least reactive family

1. periodicity

repeating nature of atomic structure

Periodicity is the repeating nature or trend of an atom on the periodic table. Periodicity can be inform of ionization energy, atomic radius, nuclear charge etc.

2. shell

location of an electron

Electrons are located in shells. It is where electrons are found in an atom and the probability of finding electrons there are high

3. non-metals

high ionization energies

Non-metals have high ionization energies which is the energy required to remove a loosely bonded electron in an atom. Metals have low ionization energies.

4. noble gases

least reactive family

Noble gases are called inert gases. They have complete electronic configuration and this makes them unreactive.

5. neutral

charge on a neutron

Neutrons have no charge on them. They are subatomic particles found in the nucleus alongside the protons

6. repel

like charges

Like charges repel one another

7. attract

unlike charges

Unlike charges attracts. Positve attracts negative charges.