2024 Chem Midterm Review

Front

Why are all atoms trying to reach an octet or the electron configuration of their nearest noble gas?

Back

Atoms are trying to reach an octet to achieve stability.

Front

Why do we use the metric system?

Back

It is simple to use, used globally, and ease of conversions by 10's.

Front

What does the size, or radius of an atom have to do with its ability to bond?

Back

The size of an atom influences its bonding ability and strength of attraction between its nucleus and bonding electrons.

Front

This substance cannot be broken down into smaller components: Mixture, Element, Compound?

Back

Element.

Front

What is emission spectra of an element?

Back

The emission spectra of an element is the fingerprint of light in an element's excited state.

Front

What is the octet rule?

Back

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

Front

Define a covalent bond.

Back

A covalent bond is a chemical bond formed when two atoms share one or more pairs of electrons.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements chemically combined.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.