Atomic Structure and Properties

This video tutorial explains how to count subatomic particles using the periodic table. It reviews the concepts of atomic mass and atomic number, and provides detailed examples for elements like Lithium-8, Oxygen-17, Boron, Sulfur, and Neon-21. The tutorial emphasizes the relationship between protons, neutrons, and electrons, and how to use this information to fill in tables with atomic data.

What is the mass of a neutron in atomic mass units (AMU)?

• 2 AMU

• 1 AMU

• 3 AMU

• 0 AMU

Which number on the periodic table represents the atomic number?

• The number to the right of the element symbol

• The number to the left of the element symbol

• The number above the element symbol

• The number below the element symbol

In the example of lithium-8, what is the atomic number of lithium?

• 2

• 3

• 4

• 5

For lithium-8, how many neutrons are present?

• 3

• 4

• 5

• 6

What is the mass number of oxygen-17?

• 8

• 15

• 17

• 16

How many electrons does oxygen-17 have?

• 9

• 10

• 8

• 7

What element corresponds to atomic number 5?

• Boron

• Carbon

• Nitrogen

• Oxygen

For sulfur-33, how many neutrons are present?

• 18

• 17

• 16

• 15

What is the atomic number of neon?

• 9

• 10

• 11

• 8

In a neutral atom, the number of protons is equal to the number of what?

• Neutrons

• Electrons

• Isotopes

• Nuclei