Atomic Structure and Properties

The video tutorial covers the structure of an atom, focusing on the nucleus, which contains protons and neutrons. It explains the concept of atomic number, denoted by Z, which is determined by the number of protons. Examples include hydrogen and carbon. The tutorial then discusses the mass number, defined as the sum of protons and neutrons, with examples of carbon and aluminium. Finally, it explains atomic notation, illustrating how atomic number, mass number, and element symbols are represented, using nitrogen as an example.

What particles are found in the nucleus of an atom?

• Protons and neutrons

• Electrons and protons

• Neutrons and electrons

• Protons and electrons

What does the atomic number of an atom represent?

• The total number of nucleons

• The number of protons

• The number of electrons

• The number of neutrons

How many protons are present in a hydrogen atom?

• Two

• One

• Three

• Zero

What is the atomic number of carbon?

• 7

• 5

• 6

• 4

What is the mass number of an atom?

• The sum of protons and neutrons

• The number of neutrons

• The sum of electrons and protons

• The number of protons

How is the mass number of aluminium calculated?

• 13U + 13U

• 13U + 14U

• 14U + 14U

• 14U + 15U

How is nitrogen represented in atomic notation?

• N, 14, 7

• N, 7, 14

• 14, 7, N

• 7, 14, N