Subatomic Particles and Atomic Structure

The video tutorial covers subatomic particles, including protons, neutrons, and electrons, detailing their charges, masses, and locations within the atom. It explains atomic and mass numbers, using carbon and lithium as examples, and demonstrates how to calculate the number of neutrons and nuclear charge. The lesson concludes with practice exercises to reinforce understanding.

What is the charge of a neutron?

• +2

• -1

• 0

• +1

What is the mass of a proton in atomic mass units (amu)?

• 1/1836 amu

• 0 amu

• 2 amu

• 1 amu

Which subatomic particle is located outside the nucleus?

• Electron

• Nucleon

• Neutron

• Proton

Which subatomic particle has a negligible mass compared to others?

• Electron

• Neutron

• Proton

• Nucleon

What is the charge of an electron?

• +1

• 0

• +2

• -1

How is the atomic number of an element determined?

• By the number of neutrons

• By the sum of protons and neutrons

• By the number of electrons

• By the number of protons

What does the mass number of an element represent?

• The number of protons

• The number of electrons

• The sum of protons and neutrons

• The number of neutrons

If an atom is neutral, how do the number of protons and electrons compare?

• Protons and electrons are equal

• Electrons are more than protons

• Protons are more than electrons

• Protons are double the electrons

How do you calculate the number of neutrons in an atom?

• Subtract the atomic number from the mass number

• Add the atomic number to the mass number

• Multiply the atomic number by the mass number

• Divide the mass number by the atomic number

What is the nuclear charge of an atom with 3 protons?

• +1

• 0

• +3

• -3