Chemistry Final Exam Review Fall Semester

Front

What are materials with very low thermal conductivities called?

Back

Insulators

Front

As you move across the periodic table, atoms tend to get smaller because ____

Back

the increased nuclear charge pulls electrons closer to the nucleus

Front

What is the asthenosphere?

Back

A solid layer of mantle rock that is more fluid than the lithosphere or mesosphere.

Front

What is the average time a molecule or element spends in a specific reservoir within a biogeochemical cycle called?

Back

Residence Time

Front

What is the transfer of heat by fluid motions of materials, driven by differences in density?

Back

Convection

Front

What is the definition of a conductor in terms of thermal properties?

Back

Materials that allow heat to pass through them easily.

Front

What is the definition of an insulator in terms of thermal properties?

Back

Materials that resist the flow of heat.

Front

What is the significance of the atomic number in the periodic table?

Back

It represents the number of protons in an atom's nucleus and determines the element's identity.

Front

What is the difference between the lithosphere and the asthenosphere?

Back

The lithosphere is rigid and solid, while the asthenosphere is more fluid and can flow.

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the atomic mass and stabilize the nucleus.