Atomic Structure: Bohr and quantum models & Fixing the P. Table

What are the three subatomic particles found in an atom?

• Electrons, Protons, Neutrons

• Anions, Isotopes, Cations

• Nucleus, Orbitals, Electrons

• Carbon, Oxygen, Nitrogen

In Bohr's atomic model, what happens to an atom if one of its electrons absorbs energy from an external source?

• The electron "jumps" to an orbit of higher energy

• The electron "jumps" to an orbit of lower energy

• The electron is destroyed

• The atom is destroyed

What were some limitations of Bohr's atomic model?

• all the other answers are correct

• Bohr's model could not explain energy sublevels

• Bohr's model could not predict the orbitals of larger atoms

• Bohr's model contradicted the uncertainty principle

How many types of quantum numbers are there?

• 1

• 2

• 3

• 4

What quantum number determines the energy and size of an orbital?

• The principal quantum number

• The spin quantum number

• The magnetic quantum number

• The angular quantum number

What are electrons in Schrödinger's quantum mechanical model?

• wave-particle

• particles

• waves

• energy levels

There are some black lines in the absorption spectrum. Can you figure out what these are?

• The gas cloud acts as a "filter" and absorbs light of specific wavelengths

• The gas cloud acts as a "mirror" and reflects light of specific wavelengths

• The gas cloud acts as a "smokescreen" and diffuses light of specific wavelengths

• The gas cloud acts as a "crystal" and diffracts light of specific wavelengths

The image below displays the absorption spectrum for hydrogen and the corresponding jumps between electron orbits. Based on what you can observe, what wavelengths does hydrogen absorb? Click on and zoom into the image for a closer look.

• Violet, blue, cyan, and red

• Only black

• Red, orange, yellow, green, blue, indigo, and violet

• Violet & red

What is the connection between the absorption and emission spectra?

• The emission spectrum consists of all wavelengths that are missing in the absorption spectrum

• The emission spectrum contains the same exact wavelengths as the absorption spectrum

• The emission and absorption spectra are not related in any way

• The emission and absorption spectra always contain the same wavelength ranges

What elements are most abundant in the universe?

• Hydrogen and oxygen

• Hydrogen and Helium

• Helium and Neon

• Nitrogen and oxygen