subatomic particles found in the outermost orbitals & responsible for the atom's reactivity

• neutrons

• valence electrons

• isotopes

• ions

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

Tags

NGSS.HS-PS1-8

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

A charged atom

• Ion
• Isotope
• Electron Cloud
• Quark

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-4

The smallest particle of an element that shows all the properties of that element.

• Subatomic Particles
• Atom
• Quarks
• Gluons

Tags

NGSS.MS-PS1-1

Where electrons are likely to be found as they travel around the nucleus

• Nucleus
• Electron Cloud
• Within a Proton
• Within a Neutron

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

Tags

NGSS.HS-PS1-8

Subatomic particle with a charge of 0

• neutron
• proton
• electron
• quark

Subatomic particle with a negative charge

• proton

• electron

• neutron

• quark

The nucleus of an atom is made of

• electrons and protons
• electrons and neutrons
• protons and neutrons
• empty space

Tags

NGSS.HS-PS1-8