How many distinct kinds of atoms are currently known?

• 100

• 118

• 120

• 150

Where are most of the atoms found in nature?

• In the ocean

• In the atmosphere

• In nature

• In laboratories

What is an element?

• A compound consisting of two types of atoms

• Any material consisting of only one type of atom

• A mixture of different atoms

• A synthetic kind of matter

What is chemistry the study of?

• The study of energy and its transformations

• The study of matter and the changes that matter undergoes

• The study of the universe and celestial bodies

• The study of cells and living organisms

How is matter defined?

• Anything that has energy and occupies space

• Anything that can be seen and touched

• Anything that has mass and occupies space

• Anything that can be measured and quantified

What does the periodic table list?

• A list of mathematical formulas

• A list of chemical elements

• A list of physical constants

• A list of biological species

How are elements designated in the periodic table?

• By their atomic mass

• By their full chemical name

• By their symbol with the first letter capitalized

• By their electron configuration

What is the symbol for potassium in the periodic table?

• K

• P

• Po

• Pt

Which element is represented by the symbol 'Fe'?

• Fluorine

• Francium

• Iron

• Fermium

What is the symbol for copper on the periodic table?

• Co

• Cu

• Cp

• C