OnRamps Midterm U1 Review

Front

What is lattice energy?

Back

Lattice energy is the energy released when gaseous ions combine to form an ionic solid. It is a measure of the strength of the forces between the ions in an ionic compound.

Front

How does the charge of ions affect lattice energy?

Back

The greater the charges of the ions, the greater the magnitude of lattice energy. This is because higher charges result in stronger electrostatic forces between the ions.

Front

What is the electronic configuration of a noble gas?

Back

The electronic configuration of a noble gas is characterized by a full outer shell of electrons, typically represented as ns²np⁶.

Front

Which ions have the same electronic configuration as Argon (Ar)?

Back

The ions Cl⁻, K⁺, and Mg²⁺ all have the same electronic configuration as Argon (1s² 2s² 2p⁶ 3s² 3p⁶).

Front

What does the photoelectric effect demonstrate about light?

Back

The photoelectric effect demonstrates the particle nature of light, showing that light can be thought of as consisting of particles called photons.

Front

What is the trend in ionic radii for isoelectronic species?

Back

In isoelectronic species, the ionic radius decreases with increasing nuclear charge. For example, among Na⁺, Mg²⁺, and Al³⁺, Al³⁺ has the smallest radius.

Front

What defines an ionic bond?

Back

An ionic bond is defined as the electrostatic attraction between two oppositely charged ions, typically formed when one atom donates an electron to another.

Front

What is the difference between covalent and ionic bonds?

Back

Covalent bonds involve the sharing of electrons between atoms, while ionic bonds involve the transfer of electrons from one atom to another, resulting in charged ions.

Front

What is the significance of the octet rule in chemistry?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons, leading to greater stability.

Front

How do you determine the order of ionic radii?

Back

To determine the order of ionic radii, consider the charge of the ions: cations are smaller than their parent atoms, while anions are larger.