Subatomic Particles
Nuclear Reactions
Atomic Notation
Periodic Trends
Vocab Terms
100

These are the three subatomic particles that exist inside an atom.

What are protons, neutrons, and electrons?

100

This is the nuclear reaction that combines smaller atomic nuclei into a single, larger nucleus. This reaction is the driving force that keeps stars alive.

What is Fusion?

100

This is the atomic notation for deuterium, which is a Hydrogen atom with one neutron.

What is 21H ?

100

This is what happens to atomic radius as you go down a group of the periodic table.

What is It Increases?

100

This is the number that identifies an element on the periodic table.

What is Atomic Number?

200

This is the positively charged particle that resides in the atomic nucleus. It determines the identity of an element.

What is a proton?

200

This is the nuclear reaction that splits a large atomic nucleus into smaller atoms. It is used to power nuclear power plants around the world.

What is Fission?

200

This is the atomic notation for the most stable form of Helium.

What is 42He ?

200

This is what happens to atomic radius as you go to the right on the periodic table.

What is It Decreases?

200

This word means the center of an atom, where the protons and neutrons exist.

What is the Nucleus?

300

This is the negatively charged particle that resides in the orbitals of an atom. It is responsible for chemical reactivity with other atoms.

What is an electron?

300

Complete the following nuclear fission reaction by filling in the blank:

What is 10n ?

300

This is the atomic notation for Oxygen-16.

What is 168O ?

300

This is where the elements with the highest electronegativity are located on the periodic table.

What is the Top Right Corner? (excluding the Noble Gases)

300

This is what we call two versions of the same element with different atomic masses (due to different neutron counts).

Example: Carbon-12 and Carbon-14

What is an Isotope?

400

This is the subatomic particle with no charge that resides in the atom's nucleus. It serves a purpose of stabilizing the nucleus, to prevent radioactive decay.

What is a neutron?

400

Label this type of nuclear reaction as fission or fusion:

What is Fusion?

400

This is the atomic notation for a Nitrogen atom with 8 neutrons.

What is 157N ?

400

This is the primary reason why atomic radius increases as you move down a group of the periodic table.

What is electron shielding?

400

This is the name of the scientist that discovered the different energy levels of electrons. He also created an atomic model that highlights this discovery.

Who is Niels Bohr?

500

This is the number of protons, neutrons, and electrons in a neutral Oxygen-16 atom.

What is 8?

500

This small particle is the catalyst for a fission reaction, that is also released in the process, causing a chain reaciton.

What is a neutron?

500

This is the atomic notation for a Uranium atom with 146 neutrons.

What is 23892U?

500

Atomic Radius and Electronegativity have a ________ relationship (options: direct/inverse)

What is inverse?

500

This is the type of radioactive decay that releases a Helium(He) nucleus.

What is Alpha Decay?