Protons Neutrons and Electrons and Average Atomic Mass

What number is circled?

• Number of Neutrons
• Number of Protons
• Atomic Mass
• Number of Electrons

Tags

NGSS.MS-PS1-1

How many electrons does an atom of Krypton have?

• 36
• 83.80
• 47.80
• 119.80

Tags

NGSS.HS-PS1-1

How many electrons does a Hydrogen atom have?

• 1
• 2
• 3
• 0

Tags

NGSS.MS-PS1-1

How many neutrons does an Oxygen atom have?

• 8
• 16
• 24
• 7.999

Tags

NGSS.MS-PS1-1

What is the number highlighted?

• Atomic number
• Atomic mass
• Number of protons
• Number of electons

What does this number represent?

• Number of protons
• Number of neutrons
• Number of electrons
• Number of protons and neutrons

What is the atomic mass of Sodium?

• 11
• 22.9898
• 33.9898
• 11.9898

What is the atomic mass of Neon?

• 10
• 20.18
• 10.18
• 20.19

What is the mass number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

This particle is found in the nucleus and has a positive charge

• Electron
• Proton
• Neutron