Unit 3 Review Bonding

Front

What is the most stable outer electron configuration?

Back

A stable outer electron configuration is typically achieved when an atom has a full valence shell, often resembling the electron configuration of noble gases.

Front

Which element has a stable outer electron configuration?

Back

Ne (Neon) has a full outer shell with 8 electrons, making it stable.

Front

What is a nonpolar molecule?

Back

A nonpolar molecule is one where the electron distribution is even, resulting in no distinct poles. Example: CO₂ (Carbon Dioxide).

Front

What occurs when a bond is broken?

Back

When a bond is broken, energy is absorbed from the surroundings.

Front

What is an ionic bond?

Back

An ionic bond is formed when electrons are transferred from one atom to another, resulting in the formation of charged ions. Example: KBr (Potassium Bromide).

Front

What are intermolecular forces?

Back

Intermolecular forces are forces of attraction or repulsion between neighboring particles (atoms, molecules, or ions).

Front

How do intermolecular forces affect states of matter?

Back

Stronger intermolecular forces result in solids, while weaker forces lead to gases. Example: Fluorine (gas) vs. Iodine (solid) at STP.

Front

What is the significance of STP in chemistry?

Back

STP (Standard Temperature and Pressure) is a reference point used to compare gas behaviors, defined as 0°C (273.15 K) and 1 atm pressure.

Front

What is the difference between polar and nonpolar molecules?

Back

Polar molecules have an uneven distribution of charge, while nonpolar molecules have an even distribution.

Front

What happens during a chemical reaction involving bond breaking?

Back

Energy is absorbed when bonds are broken, and energy is released when new bonds are formed.