Quiz on Atoms and Mixtures

Which of the following diagrams correctly labels the parts of an atom?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Tags

NGSS.MS-PS1-1

What charge do electrons, protons, and neutrons have?

• Electrons have a positive charge, protons have a negative charge, and neutrons have no charge.

• Electrons have a negative charge, protons have a positive charge, and neutrons have no charge.

• Electrons have no charge, protons have a positive charge, and neutrons have a negative charge.

• Electrons have a positive charge, protons have no charge, and neutrons have a negative charge.

The atomic mass is made up of which 2 parts of the atom?

• Protons and electrons

• Neutrons and electrons

• Protons and neutrons

• Electrons and positrons

What is the difference between an element and a compound?

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

• An element is a mixture of different substances, while a compound is a pure substance made of only one type of atom.

• An element is a substance that can be broken down into simpler substances, while a compound cannot be broken down further.

• An element is a liquid at room temperature, while a compound is always a solid.

How do you know how many protons and electrons are in an element?

• By looking at the atomic number

• By looking at the atomic mass

• By looking at the number of neutrons

• By looking at the element's symbol

How do you know how many neutrons are in an element?

• By looking at the atomic number

• By subtracting the atomic number from the mass number

• By adding the number of protons and electrons

• By dividing the mass number by the atomic number

How are groups organized on the periodic table?

• By increasing atomic number

• By decreasing atomic number

• By alphabetical order

• By atomic mass

Rows on the periodic table are organized by what property?

• Atomic number

• Atomic mass

• Number of neutrons

• Number of isotopes

What is a homogeneous mixture?

• A mixture with a uniform composition throughout

• A mixture with different compositions in different parts

• A mixture that can be easily separated into its components

• A mixture that contains only one type of substance

What is a heterogeneous mixture?

• A mixture with a uniform composition throughout

• A mixture with a non-uniform composition

• A pure substance

• A chemical compound