7th Grade Atoms, Elements, Compounds and Mixtures

Front

What are the two main types of mixtures?

Back

Heterogeneous and homogeneous.

Front

What is the charge of neutrons in an atom?

Back

Neutrons have no charge.

Front

What is the central region of an atom called?

Back

The nucleus.

Front

How many protons does an atom with atomic number 6 have?

Back

6 protons.

Front

What is the chemical symbol for the element Carbon?

Back

C.

Front

Define an atom.

Back

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

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition and appearance throughout.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that consists of visibly different substances or phases.

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons.