Chemistry Interim #2 Review Questions

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in the nucleus of an atom.

Front

In which sublevel is sulfur located?

Back

Sulfur is located in the p sublevel.

Front

What is the electron configuration of an oxygen atom?

Back

The electron configuration of an oxygen atom is 1s² 2s² 2p⁴.

Front

What is the relationship between frequency and wavelength?

Back

High frequency waves have short wavelengths.

Front

What follows the 4s sublevel in electron configuration?

Back

The 3d sublevel follows the 4s sublevel.

Front

Define atomic mass.

Back

Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configurations, and recurring chemical properties.

Front

What is an isotope?

Back

An isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons.

Front

Explain the concept of electron configuration.

Back

Electron configuration describes the distribution of electrons in an atom's orbitals.

Front

What is the difference between a cation and an anion?

Back

A cation is a positively charged ion, while an anion is a negatively charged ion.