1.4 Relative electrical charges of subatomic particles

• A proton has a relative electrical charge of +1.

  True
• Match the subatomic particle with its relative electrical charge:

  Proton ↔️ +1

  Neutron ↔️ 0

  Electron ↔️ -1
• Where do electrons orbit in an atom?

  Shells around the nucleus
• What is the relative electrical charge of a proton?

  +1
• What is the relative electrical charge of an electron?

  -1
• Electrons orbit the nucleus in shells.


  True
• Neutrons are located in the nucleus
• What is the electrical charge of a neutron?

  0
• What is the relative electrical charge of a neutron?

  0
• Rutherford's gold foil experiment revealed the positively charged nucleus
• Match the experiment with its key finding:

  Rutherford's gold foil experiment ↔️ Nucleus is positively charged

  Cathode ray tube experiments ↔️ Electrons are negatively charged
• Protons and neutrons have a relatively large mass
• What are ions formed by?

  Gain or loss of electrons
• What type of charge does a cation have?

  Positive
• Electrons orbit the nucleus in shells and have a charge of -1.


  True
• Protons and neutrons are located in the central nucleus
• Neutrons are electrically neutral and have a charge of 0.

  True
• Where are electrons located in an atom?

  Shells orbiting the nucleus
• Electrons have a relative electrical charge of -1
• What is the relative electrical charge of a neutron?

  0
• Cathode ray tube experiments showed that electrons are negatively charged.


  True
• Which subatomic particles have a relatively large mass?

  Protons and neutrons
• Charge refers to the amount of matter a particle contains.

  False
• What is an ion?

  An atom with a charge
• Match the ion type with its charge representation:

  Positive Ion ↔️ +1

  Negative Ion ↔️ -1
• A chloride ion (Cl-) has a charge of -1 because it has gained one electron.


  True
• Charges dictate how atoms interact, forming bonds and creating compounds
• What are the three main types of subatomic particles that make up an atom?

  Protons, neutrons, electrons
• A neutron has a relative electrical charge of 0
• What is the relative electrical charge of an electron?

  -1
• Protons and neutrons are located in the nucleus of an atom.


  True
• Protons are located in the nucleus
• A neutron has no electrical charge.


  True
• The relative electrical charge of a neutron is 0
• Where are protons located in an atom?

  Nucleus
• What is the charge of an electron?

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

  +1
• What is the relative electrical charge of an electron?

  -1
• Cathode ray tube experiments indicated that electrons are negatively charged.

  True