OL Midterm Review 2024 Fall

Front

What are isotopes?

Back

Atoms of the same element that have different mass numbers due to varying numbers of neutrons.

Front

What is the orbital notation for phosphorus (P)?

Back

The orbital notation for phosphorus is 1s² 2s² 2p⁶ 3s² 3p³.

Front

Which subatomic particle is negatively charged?

Back

Electrons are the negatively charged subatomic particles located outside the nucleus.

Front

What is the formula to calculate the volume of a gas at different temperatures?

Back

Using Charles's Law: V1/T1 = V2/T2.

Front

How do you calculate the average atomic mass of an element with multiple isotopes?

Back

Average atomic mass = (mass1 * abundance1) + (mass2 * abundance2) + ...

Front

What is the significance of the atomic number?

Back

The atomic number indicates the number of protons in an atom and defines the element.

Front

What is the difference between ions and isotopes?

Back

Ions are atoms that have gained or lost electrons, resulting in a charge, while isotopes are atoms of the same element with different numbers of neutrons.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom.

Front

What is the role of neutrons in an atom?

Back

Neutrons help stabilize the nucleus and contribute to the mass of the atom.

Front

What is the relationship between temperature and volume of a gas?

Back

As the temperature of a gas increases, its volume also increases, provided the pressure remains constant.