ATOMS AND ELEMENTS: A

What is the central part of an atom called?

• Electron
  

• Neutron
  

• Proton
  

• Nucleus

Which atomic particle carries a positive charge?

• Electron
  

• Proton

• Neutron
  
  

• Nucleus

What is the charge of a neutron?

• Positive
  

• Negative
  

• Neutral
  

• Variable

What is the charge of an electron?

• Positive
  

• Negative
  

• Neutral
  

• Both positive and negative

Which two atomic particles are found inside the nucleus?

• Electrons and neutrons
  

• Protons and neutrons
  

• Protons and electrons
  

• Neutrons and electrons

13. Which atomic particle has the smallest mass?

• Proton
  

• Neutron
  

• Electron
  

• Nucleus

Where are electrons located in an atom?

• Inside the nucleus
  

• Outside the nucleus
  

• Mixed with protons
  

• In the neutron shell