The video tutorial explains the structure of atoms, focusing on the three main subatomic particles: protons, neutrons, and electrons. It describes their charges, locations, and roles in forming neutral atoms. The tutorial also covers how to determine the number of each particle in an atom using the atomic number and mass. Additionally, it introduces Bohr models to visualize electron arrangements and demonstrates how to identify elements based on their subatomic composition.

What are the three main types of particles that make up an atom?

• Neutrons, Electrons, and Quarks

• Protons, Electrons, and Quarks

• Protons, Neutrons, and Photons

• Protons, Neutrons, and Electrons

Where are electrons found in an atom?

• In the proton cloud

• In the electron cloud

• In the nucleus

• In the neutron cloud

Tags

NGSS.MS-PS1-1

What is the charge of an electron?

• Negative

• Zero

• Positive

• Neutral

Tags

NGSS.MS-PS2-3

What determines the unique number of protons in an element?

• Atomic number

• Electron number

• Atomic mass

• Neutron number

Where are protons located in an atom?

• In the electron cloud

• In the neutron cloud

• In the proton cloud

• In the nucleus

What is the charge of a proton?

• Zero

• Neutral

• Negative

• Positive

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• Zero

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

• Subtract the atomic number from the atomic mass

• Add the atomic number to the atomic mass

• Multiply the atomic number by the atomic mass

• Divide the atomic number by the atomic mass

What is the atomic number of chlorine?

• 36

• 35

• 18

• 17

How many electrons can the first shell of a Bohr model hold?

• 1

• 2

• 8

• 10