Counting Atoms

Front

What is the periodic table?

Back

A table that organizes all known chemical elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means, consisting of only one type of atom.

Front

What is a compound?

Back

A substance formed when two or more different elements are chemically bonded together.

Front

What is the chemical symbol for oxygen?

Back

O

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, good conductors of heat and electricity, and malleable, while nonmetals are usually dull, poor conductors, and brittle.

Front

What does it mean if an element has no subscript in a chemical formula?

Back

It means there is only one atom of that element present in the compound.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is mass?

Back

A measure of the amount of matter in an object, usually measured in grams or kilograms.

Front

What is volume?

Back

The amount of space that a substance or object occupies, typically measured in liters or cubic centimeters.

Front

What is a molecule?

Back

A group of two or more atoms bonded together, which can be of the same or different elements.