Atoms, Periodic Table, Pures Substances and Mixtures, pH

Front

Heterogeneous

Back

A mixture in which the substances that make up the mixture are not evenly mixed.

Front

What are the two elements that have similar properties?

Back

Potassium (K) and Francium (Fr)

Front

What is a positively-charged particle in the atom's nucleus?

Back

Proton

Front

How many different types of molecules are pictured?

Back

2

Front

Most of the elements on the periodic table are classified as _____

Back

Metals

Front

What is an atom?

Back

The basic unit of a chemical element, consisting of a nucleus surrounded by electrons.

Front

What is the periodic table?

Back

A tabular arrangement of the chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Front

What is a pure substance?

Back

A material that has a constant composition and consistent properties throughout.

Front

What is a mixture?

Back

A combination of two or more substances where each retains its own properties.

Front

What is pH?

Back

A scale used to specify the acidity or basicity of an aqueous solution.