1.4 Relative electrical charges of subatomic particles

• What is the relative electrical charge of a proton?

  +1
• How do the relative electrical charges of protons and electrons compare?

  Equal in magnitude, opposite in sign
• Which subatomic particle is associated with positive charges?

  Protons
• What is the relative electrical charge of a neutron?

  0
• Why does a proton attract negatively charged particles?

  It has a positive charge
• Match the subatomic particle with its relative electrical charge:

  Proton ↔️ +1

  Neutron ↔️ 0

  Electron ↔️ -1
• One coulomb is approximately equal to 6.24 x 10^18 elementary charges.


  True
• Electrons have a negative electrical charge of -1
• What is the relative electrical charge of a neutron?

  0
• What is the relative electrical charge of an electron?

  -1
• The standard unit of electric charge is the coulomb
• What is the charge of an electron referred to?

  Elementary charge
• Electric charge is a fundamental property of matter
• An electron has a relative electrical charge of -1
• Match the subatomic particle with its relative electrical charge:

  Proton ↔️ +1

  Neutron ↔️ 0

  Electron ↔️ -1
• One coulomb is approximately equal to 6.24 x 10^18 elementary charges.


  True
• The coulomb is the standard unit for measuring electric charge.

  True
• Why do neutrons not cause repulsion within the nucleus?

  They are electrically neutral
• When you rub a balloon on your hair, electrons transfer to the balloon, giving it a negative charge
• Why are neutrons electrically neutral?

  They have a charge of 0
• What is the relative electrical charge of a proton?

  +1
• What is the relative electrical charge of a neutron?

  0
• What is electric charge?

  Fundamental property of matter
• Neutrons are electrically neutral and have a charge of 0.


  True
• Why are atoms electrically neutral?

  Protons equal electrons
• What are the three main subatomic particles in an atom?

  Protons, neutrons, electrons
• Neutrons have a relative electrical charge of 0.


  True
• The electrical charges of subatomic particles are significant in determining atomic structure.


  True
• The standard unit of electric charge is the coulomb
• Electric charge can be either positive or negative
• Neutrons have a relative electrical charge of 0
• What are the two types of electric charge?

  Positive and negative
• What electrical charge causes a proton to attract negatively charged particles?

  Positive charge
• The charge of an electron is referred to as an elementary charge.


  True
• What is the relative electrical charge of a proton?

  +1
• Neutrons contribute to the stability of the nucleus but have no electrical charge.

  True
• Where are protons located within an atom?

  Nucleus
• Electrons are attracted to the positively charged nucleus