Chemistry first semester final

Front

What is the electron configuration of Chromium?

Back

1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d4

Front

What is an intensive physical property?

Back

A property that does not depend on the amount of matter present, such as color.

Front

What is the term that describes the amount of matter in an object?

Back

Mass.

Front

What is an atom?

Back

The basic unit of a chemical element, comprised of protons, neutrons, and electrons.

Front

What is chromatography?

Back

A separation technique that identifies parts of a mixture based on how fast different compounds move across a material.

Front

What is the difference between intensive and extensive properties?

Back

Intensive properties do not depend on the amount of substance (e.g., color), while extensive properties do (e.g., mass, volume).

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom, contributing to its mass.

Front

What are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element.