element

[noun]

One of fewer than 118 pure chemical substances. An element is a substance composed of atoms with identical atomic number.

Appears in modules:

• Absorption, Distribution, and Storage of Chemicals

• Atomic Theory I

• Atomic Theory II

• Atomic Theory III

• Atomic Theory IV

• Carbon Chemistry

• Chemical Bonding

• Chemical Equations

• Chemical Reactions

• Confidence Intervals

• Density

• Discovery and Structure of Cells

• DNA I

• DNA II

• Early Ideas about Matter

• Energy

• Factors that Control Earth's Temperature

• Franklin Chang Díaz

• History of Earth's Atmosphere I

• History of Earth's Atmosphere II

• Kevin Arrigo

• Luis Walter Alvarez

• Modeling in Scientific Research

• Nuclear Chemistry

• Properties of Minerals

• Properties of Solids

• Scientific Ethics

• Scientific Notation and Order of Magnitude

• States of Matter

• Substances

• The Carbon Cycle

• The Mole and Atomic Mass

• The Nitrogen Cycle

• The Periodic Table of Elements

• The Phosphorus Cycle

• The Silicate Minerals

• Theories, Hypotheses, and Laws

• Uncertainty, Error, and Confidence

• Using Graphs and Visual Data in Science