Atomic Structure

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

What electrical charge does a proton have?

• +1
• 0
• -1
• +2

What mass does a neutron have?

• 1 amu

• 0 amu

• -1 amu

• +2 amu

Tags

NGSS.HS-PS1-8

The total number of protons and neutrons in an atom is called the...

• Atomic number
• Proton number
• Mass number
• Weight number

Complete the missing label on the diagram.

• Neutron
• Centre
• Nucleus
• Sub atomic particle

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

What subatomic particle has a negative charge and is found outside of the nucleus?

• Electron

• Proton

• Nucleus

• Neutron

Which subatomic particle has a positive charge and is found inside the nucleus?

• Electron

• Proton

• Neutron

• Nucleus

Which subatomic particle has a neutral charge and is found inside the nucleus?

• Electrons

• Protons

• Neutrons

• Nucleus