Bohr Model and Atomic Structure

The teacher, unable to attend class due to a sick child, provides a video lecture. The video covers a review of atomic structure, focusing on the Bohr model, electron configuration, and the periodic table. Students are instructed on how to draw the Bohr model and are given a class activity to complete, involving selecting an element and creating its periodic box and Bohr model. The substitute teacher will assist in pausing the video for note-taking and distributing materials.

What is the main reason the teacher is not present in class?

• The teacher has a sick child at home.

• The teacher is unwell.

• The teacher is attending a conference.

• The teacher is on vacation.

In the Bohr model, where are the protons and neutrons located?

• In the outer orbitals

• Inside the nucleus

• In the electron cloud

• In the atomic shell

How many electrons can the second orbital hold in the Bohr model?

• 2

• 4

• 6

• 8

What does the atomic number of an element represent?

• The atomic mass

• The number of protons

• The number of electrons

• The number of neutrons

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

• Divide the atomic mass by the atomic number

• Subtract the atomic number from the atomic mass

• Add the atomic number to the atomic mass

• Multiply the atomic number by the atomic mass

When drawing the Bohr model, how should electrons be placed in orbitals?

• Randomly

• In pairs

• In groups of three

• In a single line

For a neutral atom, how does the number of electrons compare to the number of protons?

• The number of electrons is double the number of protons

• The number of electrons equals the number of protons

• There are fewer electrons than protons

• There are more electrons than protons

What is the first step in drawing the Bohr model for an element?

• Write the number of protons in the nucleus

• Calculate the atomic mass

• Draw the electron orbitals

• Determine the number of neutrons

Which element is used as an example for drawing the Bohr model in the class activity?

• Fluorine

• Carbon

• Sodium

• Nitrogen

What should students do if they don't have their periodic table during the class activity?

• Skip the activity

• Use the large one on the wall

• Guess the element's properties

• Ask a friend for theirs