Alphabetical
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:
- Animal Behavior Causes and approaches to studying behavior
- Atomic Theory I Detecting electrons and the nucleus
- Atomic Theory II Ions, neutrons, isotopes and quantum theory
- Atomic Theory III Wave-particle duality and the electron
- Atomic Theory IV Quantum numbers and orbitals
- Carbon Chemistry Simple hydrocarbons, isomers, and functional groups
- Chemical Bonding Ionic and covalent bonds and polarity
- Chemical Equations Using shorthand to show balanced reactions
- Chemical Reactions Types of reactions and the laws that govern them
- Collaborative Research in the Arctic Towards Understanding Climate Change The work of Kevin Arrigo
- Defining Energy Forms of energy, conversions, and measuring
- Density and Buoyancy Definitions and units
- Discovery and Structure of Cells Cell theory, prokaryotes, and eukaryotes
- DNA I The genetic material
- DNA II The structure of DNA
- Early Ideas about Matter From Democritus to Dalton
- Factors that Control Earth's Temperature Energy from the sun and greenhouse gases
- Franklin Chang Díaz Propulsion pioneer for future generations of astronauts
- History of Earth's Atmosphere I The origin of the modern atmosphere
- History of Earth's Atmosphere II The rise of atmospheric oxygen
- Identifying Minerals Characterizing minerals' physical properties
- Membranes and Chemical Transport Absorption, distribution, and storage of substances in organisms
- Modeling in Scientific Research Simplifying a system to make predictions
- Nuclear Chemistry Radiation, half-life, and nuclear reactions
- Nuclear Chemistry I Radiation, half-life, and nuclear reactions
- Properties of Solids The influence of crystal structure on behavior
- Scientific Ethics Ethical standards and their implications
- Scientific Notation Working with orders of magnitude
- States of Matter Kinetic molecular theory and phase transitions
- Statistical Techniques Constructing a confidence interval
- Substances Pure substances and mixtures
- The Carbon Cycle Geology, biology, and the impact of human activities
- The Mole and Atomic Mass Definitions, conversions, and Avogadro's number
- The Nitrogen Cycle Of microbes and men
- The Periodic Table of Elements I The periodic table
- The Periodic Table of Elements IV Chemical families
- The Periodic Table of Elements V Periodicity
- The Phosphorus Cycle Phosphates and fertilizer
- The Silicate Minerals The silica tetrahedron and Earth's most common minerals
- Theories, Hypotheses, and Laws Definitions, examples, and their roles in science
- Uncertainty, Error, and Confidence Characterizing natural variability and human error
- Using Graphs and Visual Data in Science Reading and interpreting graphs
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