Atoms and Subatomic Particles

smallest particle of an element

• element

• matter

• compound

• atom

Tags

NGSS.MS-PS1-1

positively charged subatomic particle

• Neutron

• Proton

• Electron

• Atom

Negatively charged subatomic particle

• Neutron

• Proton

• Electron

• Atom

Tags

NGSS.MS-PS2-3

Neutrally charged subatomic particle

• Neutron

• Proton

• Electron

• Atom

the number of protons in the nucleus of an atom

• Isotopes

• Atomic Number

• Atomic Mass/Mass Number

• Nucleus

the sum of protons and neutrons in the nucleus of an atom.

• Isotopes

• Atomic Number

• Atomic Mass

• Mass Number

the average mass of all the isotopes of an element

• Isotopes

• Atomic Number

• Atomic Mass

• Mass Number

an atom with the same number of protons and a different number of neutrons from other atoms of the same element.

• Isotopes

• Atomic Number

• Atomic Mass

• Mass Number

Created by Danish Scientist, Niels Bohr in 1913, this atomic model shows all of the particles in the atom.

In the center is circles.

• Nucleus

• Lewis Dot Structure

• Bohr's Model

• Atomic Structure

Tags

NGSS.MS-PS1-1

the arrangement of electrons in orbitals around an atomic nucleus

• Electron

• Electron Configuration

• Atomic Orbital

• Energy Level