Periodic Table, Atoms, Elements, Compounds, Mixtures

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded, such as milk and gasoline.

Front

What represents an element?

Back

An element is a pure substance that cannot be broken down into simpler substances. For example, H (Hydrogen) is an element.

Front

What do colloids appear like?

Back

Colloids appear cloudy due to the particles being dispersed throughout the mixture.

Front

What is the phase of matter with a definite shape and volume?

Back

The phase of matter that has a definite shape and definite volume is a solid.

Front

How many protons does calcium have?

Back

Calcium has 20 protons.

Front

What is an atom?

Back

An atom is the smallest unit of an element, consisting of protons, neutrons, and electrons.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together, such as H2O (water).

Front

What is the difference between a compound and a mixture?

Back

A compound is a chemical combination of elements, while a mixture is a physical combination of substances.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is a solution?

Back

A solution is a homogeneous mixture where one substance (solute) is dissolved in another (solvent), like saltwater.