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

The sum of the protons and neutrons in an atom.

• Subatomic Particles

• Atomic Number

• Atomic Mass

• Gluons

What is atomic number?

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

Which subatomic particles are found in the nucleus of an atom?

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

Tags

NGSS.MS-PS1-1

How many protons does an aluminium atom have? (Use the image to help you)

• 27

• 14

• 40

• 13

Tags

NGSS.MS-PS1-1

How many neutrons does a sodium atom have? (Use the image to help you)

• 23

• 11

• 12

• 34

Tags

NGSS.MS-PS1-1

The _________ of an element equals the number of protons in an atom of that element

• mass number
• atomic weight
• atomic number
• isotopes

Tags

NGSS.HS-PS1-7

The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.

• mass number
• atomic number 
• atomic weuight
• isotope weight

Tags

NGSS.HS-PS1-8

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

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