Structure
States
Processes
100

The basic units of matter and the defining structure of elements

What is the atom?

100

When an atom has extra electrons, it has a negative _____.

What is charge?

100

A lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds

What is Bonding?

200

The small, dense center of an atom, made up of protons and neutrons

What is the nucleus?

200

When an atom has less electrons than protons

What is Positive Charge?

200

The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table

What is Atomic Number?

300

Positively charged particles found within atomic nuclei

What are protons?

300

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons?

What is an Ion?

300

A process in which two atomic nuclei are combined to form a different element.

What is Fusion?

400

Uncharged particles found within all atomic nuclei

What are neutrons?

400

These gases have full outer energy levels and do not readily bond with other elements

What are Noble Gases?

400

A nuclear process in which the nucleus of an atom splits into two or more smaller, lighter nuclei.

What is fission?

500

Negatively charged subatomic particle located in a cloud around the nucleus

What are Electrons?

500

Specific energies that electrons can have when occupying specific orbitals? 

Electrons can be excited to higher ______ by absorbing energy from the surroundings.

What are Energy Levels?

500

An atom that has a different number of neutrons (greater or lesser atomic mass) than the standard for that element.

What is an Isotope?

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