Chemistry Final Exam Review Pt. 2

Front

According to the aufbau principle, what is the order in which electrons fill orbitals?

Back

Electrons enter orbitals of lowest energy first.

Front

How do the speeds of visible light and gamma rays compare in a vacuum?

Back

The speeds are the same.

Front

What is the modern periodic table arranged by?

Back

Increasing atomic number.

Front

What does each period in the periodic table correspond to?

Back

A principal energy level.

Front

Which type of electromagnetic radiation includes a wavelength of 10^-7 m?

Back

Visible light.

Front

What is the definition of atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the principal energy level in an atom?

Back

It indicates the main energy shell where electrons reside.

Front

What is the relationship between wavelength and frequency in electromagnetic radiation?

Back

They are inversely related; as wavelength increases, frequency decreases.

Front

What is the definition of an orbital in chemistry?

Back

A region in an atom where there is a high probability of finding electrons.

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.