! 2024 - Fall Final Exam !

Front

What is the charge of a neutral atom?

Back

0

Front

Which element has 4 energy levels?

Back

Bromine (Br)

Front

Which element has 3 energy levels?

Back

Aluminum (Al)

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.

Front

Convert 2.25 x 10^2 to standard form.

Back

225

Front

What is the atomic symbol for Carbon?

Back

C

Front

What is the definition of an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a compound is a substance formed from two or more elements that are chemically bonded.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What does the term 'energy level' refer to in an atom?

Back

The fixed distance from the nucleus of an atom where electrons may be found.