Unit 1 Vocabulary Review - elements and compounds

The smallest particle of an element. Made of electrons, protons, and neutrons.

• element

• atom

• molecule

• compound

A pure substance composed of the same type of atom throughout

• element

• atom

• molecule

• compound

composed of 2 or more different elements that are chemically combined

• element

• atom

• molecule

• compound

The simplest unit of a chemical compound that can exist; formed when 2 or more atoms join together chemically

• element

• atom

• compound

• molecule

Tags

NGSS.MS-PS1-1

Represents the type and number of atoms

• chemical symbol

• subscript

• coefficient

• chemical formula

A number placed in front of a chemical symbol or formula that shows how many atoms of molecules of the substance are involved in a reaction

• chemical symbol

• subscript

• coefficient

• chemical formula

A one or two letter notation used to represent an atom of a particular element

• chemical symbol

• subscript

• coefficient

• chemical formula

A number written below and to the right of a chemical symbol that shows the number of a specific type of atom present

• chemical symbol

• subscript

• coefficient

• chemical formula

A physical blend of 2 or more substances that preserve their identities and are blended in the form of solutions

• pure substance

• ratio

• solution

• mixture

A classification of matter made up of all the same type of atom, all the same molecules, or all the same ionically bonded elements

• pure substance

• ration

• solution

• mixture