6th Atoms, Elements, Compounds, and Mixtures Study Guide

Front

What is the modern model of the atom?

Back

The modern model of the atom describes electrons as being located in an electron cloud surrounding the nucleus.

Front

What are the three main subatomic particles of an atom?

Back

The three main subatomic particles are protons, neutrons, and electrons.

Front

Where are electrons located in an atom?

Back

Electrons are located in the electron cloud, which surrounds the nucleus.

Front

What is the nucleus of an atom composed of?

Back

The nucleus of an atom is composed of protons and neutrons.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

How can you separate a mixture of stones and wooden beads?

Back

You can separate a mixture of stones and wooden beads by adding water and skimming off the wooden beads.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements chemically combined.

Front

How can you separate a mixture of sugar and water?

Back

You can separate a mixture of sugar and water by boiling the water to evaporate it, leaving the sugar behind.

Front

What is an electron cloud?

Back

The electron cloud is the region around the nucleus of an atom where electrons are likely to be found.