Fall Final Review

Front

What is Bohr’s model of the atom?

Back

Bohr’s model of the atom describes electrons orbiting the nucleus in quantized energy levels, improving upon Rutherford's model by introducing the concept of quantized states.

Front

What is an electrolyte?

Back

An electrolyte is a substance that dissociates into ions in solution, allowing it to conduct electricity. An example is salt (NaCl) dissolved in water.

Front

What does the Kinetic Molecular Theory state about gas particles and temperature?

Back

According to the Kinetic Molecular Theory, as the temperature increases, the speed of gas particles increases.

Front

What subatomic particles are found in the nucleus of an atom?

Back

The nucleus of an atom contains protons and neutrons.

Front

How does an ion differ from a neutral atom?

Back

An ion differs from a neutral atom in that it has a different number of electrons. For example, a magnesium ion (Mg²⁺) has fewer electrons than a neutral magnesium atom.

Front

What is the significance of quantized energy levels in Bohr’s model?

Back

Quantized energy levels explain why electrons can only occupy certain energy states and why they emit or absorb specific wavelengths of light.

Front

What is the difference between a strong electrolyte and a weak electrolyte?

Back

A strong electrolyte completely dissociates into ions in solution, while a weak electrolyte only partially dissociates.

Front

What is the role of neutrons in the nucleus?

Back

Neutrons contribute to the mass of the atom and help stabilize the nucleus by offsetting the repulsive forces between protons.

Front

What happens to the pressure of a gas if the volume decreases while temperature remains constant?

Back

According to Boyle's Law, if the volume of a gas decreases while temperature remains constant, the pressure increases.

Front

What is the relationship between temperature and kinetic energy of gas particles?

Back

The average kinetic energy of gas particles is directly proportional to the temperature of the gas.