Atomic Structure and Composition Concepts

The video tutorial explains the basic structure of an atom, which consists of protons, neutrons, and electrons. It uses nitrogen as an example to illustrate how to determine the atomic number, which is the number of protons in an atom. The tutorial also covers the concept of atomic mass, which is the sum of protons and neutrons, and explains how to calculate the number of neutrons by subtracting the atomic number from the atomic mass. Additionally, it clarifies that in a neutral atom, the number of electrons equals the atomic number. The video concludes with a summary of these atomic concepts.

What are the three main components of an atom?

• Protons, Electrons, Photons

• Protons, Neutrons, Photons

• Protons, Neutrons, Electrons

• Neutrons, Electrons, Photons

Which component of an atom carries a positive charge?

• Photons

• Electrons

• Neutrons

• Protons

What does the atomic number of an element represent?

• The number of neutrons

• The number of protons

• The number of electrons

• The atomic mass

Where can you typically find the atomic number of an element on the periodic table?

• Next to the element name

• Below the element symbol

• Above the element symbol

• Beside the atomic mass

What contributes to the atomic mass of an atom?

• Only protons

• Electrons and protons

• Only neutrons

• Protons and neutrons

How is the atomic mass of nitrogen represented in the periodic table?

• 28

• 21

• 14

• 7

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

• Multiply the atomic number by the atomic mass

• Subtract the atomic number from the atomic mass

• Add the atomic number and atomic mass

• Divide the atomic mass by the atomic number

For nitrogen, what is the result of subtracting the atomic number from the atomic mass?

• 6

• 5

• 7

• 8

In a neutral atom, the number of electrons is equal to which of the following?

• Atomic mass

• Number of neutrons

• Atomic number

• Number of protons and neutrons

What does the atomic mass represent?

• Total number of electrons

• Total number of neutrons

• Total number of protons

• Total number of protons and neutrons