Atomic Structure

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.MS-PS2-3

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

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

The nucleus of an atom is made of

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

Tags

NGSS.MS-PS1-1

Outside the nucleus of an atom are these

• protons
• neutrons
• quarks
• electrons

The mass of this particle is so small that it is not counted.

• proton
• electron
• neutron
• quark

The overall charge of all atoms (not ions)

• positive
• negative
• neutral
• sometimes positive and sometimes negative

Tags

NGSS.HS-PS2-4

The number of these determines which element an atom is.

• neutrons
• electrons
• protons

What is atomic number?

• Number of protons in an atoms 
• Number of neutrons in an atom
• Mass of an atom
• Charge on an atom