Chemistry Quiz

What is matter defined as in the context of the learning material?

• A substance that cannot be broken down into simpler substances

• The smallest unit of a chemical element

• Anything that occupies space and has mass

• A type of energy that has mass and occupies space

How many types of elements are known according to the learning material?

• 92

• 112

• 118

• 120

How many of the known elements are naturally occurring?

• 88

• 92

• 100

• 112

What are elements made up of?

• Cells

• Molecules

• Atoms

• Compounds

Which of the following best describes the relationship between major elements and trace elements?

• Major elements are less common than trace elements

• Major elements and trace elements are the same

• Major elements are more common than trace elements

• Trace elements do not exist in nature

What are protons?

• Negatively charged particles

• Neutral particles

• Positively charged particles

• Particles that spin around the nucleus

Where are protons and neutrons located in an atom?

• In the electron shell

• Outside the nucleus

• In the nucleus

• They are not part of an atom

What charge do electrons have?

• Positive

• Neutral

• Negative

• No charge

What is the behavior of electrons in an atom?

• They remain stationary

• They spin around the nucleus

• They are found in the nucleus

• They orbit in a fixed path

What does the atomic number of an element refer to?

• The total number of protons and neutrons in the nucleus

• The number of electrons in an atom

• The number of protons in the nucleus of an atom

• The number of neutrons in the nucleus