Atomic Structure

Which subatomic particle has a positive (+) charge?

• Neutron
• Proton
• Electron

True or False - Protons and Neutrons have the same mass.

• True - They have about the same mass
• False - They do not have about the same mass

Tags

NGSS.MS-PS1-1

Which subatomic particle has a negative (-) charge?

• Proton
• Electron
• Neutron

Which subatomic particle has a neutral or no charge?

• Proton
• Electron
• Neutron

Which two subatomic particles make up the nucleus of an atom?

• Protons and Electrons
• Neutrons and Electrons
• Electrons and Protons
• Protons and Neutrons

Tags

NGSS.MS-PS1-1

The name of this particle means indivisible and is one of the fundamental building blocks of matter

• molecule

• compound

• atom

• isotope

The mass of an atom is

• equal to the number of protons

• the protons + electrons

• the protons + neutrons

• the protons + neutrons + electrons

In a electrically neutral atom,

• protons = electrons

• protons = neutrons

• neutrons = electrons

• protons = neutrons = electrons

Value representing the number of protons in an element

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

Tags

NGSS.HS-PS1-7

All ____________ are made up of two or more atoms bonded together.

• atoms
• molecules
• electrons
• elements

Tags

NGSS.MS-PS1-1