The smallest particle of an element or matter

• Proton

• Atom

• Electron

• Electron Cloud

The central part of an atom that is made up of neutrons and protons

• Protons

• Neutrons

• Nucleus

• Reactivity

The region around the nucleus where the electrons may be found.

• Electron Cloud

• Reactivity

• Neutron

• Atom

Tags

NGSS.MS-PS1-1

Electron in the outermost energy level of an atom.

• Valence Electrons

• Protons

• Neutrons

• Reactivity

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Positivley charged particle located in the nucleus of an atom.

• Electrons

• Protons

• Neutrons

• Subatomic Particles

Negatively charged particle found outside the nucleus of an atom

• Electrons

• Protons

• Neutrons

• Electron Cloud

Tags

NGSS.MS-PS2-3

Is the ability of matter to combine chemically with other substances.

• Reactivity

• Proton

• Subatomic Partices

• Electrons

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Refers to anything smaller than an atom. Examples: Electrons, protons and neutrons.

• Electron cloud

• Element

• Subatomic Particles

• Protons

A subatomic particle of about the same mass as a proton but has no (zero/neutral) electric charge.

• Neutron

• Proton

• Electron

• Electron Cloud

Which particle has a positive charge?

• electron
• orbital
• proton
• neutron