7th Grade Science: Unit 01 Flashcards

Front

Fill in the blank: The ______ is the smallest particle of an element.

Back

atom

Front

A ______ represents the type and number of atoms present in a particular substance.

Back

chemical formula

Front

Fill in the blank: A ______ is one or two letters representing a chemical element.

Back

chemical symbol

Front

Fill in the blank: A ______ is composed of two or more different elements that are chemically combined.

Back

compound

Front

Fill in the blank: An ______ is a pure substance composed of the same type of atom throughout.

Back

element

Front

A ______ refers to the simplest unit of a chemical compound that can exist; formed when two or more atoms combine chemically.

Back

molecule

Front

Fill in the blank: A ______ is a combination of two or more substances.

Back

mixture

Front

Fill in the blank: A ______ is the smallest, discrete portion of a substance.

Back

particle

Front

Fill in the blank: The ______ is an organized table of all the chemical elements in order of increasing atomic number.

Back

periodic table of elements

Front

Fill in the blank: A ______ is a sample of matter that is made up of the same particles.

Back

pure substance