Elements and Compounds

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It is made up of only one type of atom.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together in fixed proportions.

Front

What is the chemical symbol for Carbon?

Back

C

Front

What is the chemical symbol for Oxygen?

Back

O

Front

What is the chemical symbol for Sodium?

Back

Na

Front

Do elements have unique chemical symbols?

Back

Yes, each element has a unique one or two-letter chemical symbol.

Front

What are chemical properties?

Back

Chemical properties are characteristics of a substance that become evident during a chemical reaction, such as reactivity, flammability, and rusting.

Front

What are physical properties?

Back

Physical properties are characteristics that can be observed or measured without changing the substance's chemical identity, such as color, melting point, and density.

Front

Can compounds have different properties than the elements that make them up?

Back

Yes, compounds often have properties that are different from the individual elements that compose them.

Front

What is the difference between an element and a compound?

Back

An element is a single type of atom, while a compound consists of two or more different types of atoms chemically bonded together.