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Jul 3, 2017 · Look up definitions of chemistry words in this comprehensive A to Z chemistry dictionary. The glossary is organized alphabetically.
- Absolute Zero to Amine
- Base to Crystal
- Delocalization to Exothermic
- Family to Mole
- Node to RMS Velocity
- Salt to Triple Point
- Unit Cell to VSEPR
absolute zero- Absolute zero is 0K. It is the lowest possible temperature. Theoretically, at absolute zero, atoms stop moving. accuracy- Accuracy is a measure of how close a measured value is to its true value. For example, if an object is exactly a meter long and you measure it as 1.1 meters long, that is more accurate than if you measured it at 1...
base - A base is a compound that produces OH- ions or electrons in water or accepts protons. An example of a common base is sodium hydroxide, NaOH. beta particle - A beta particle is an electron, although the term is used when the electron is emitted in radioactive decay. binary compound - A binary compound is one made up of two elements. binding e...
delocalization- Delocalization is when electrons become free to move all over a molecule, such as when double bonds occur on adjacent atoms in a molecule. denature - There are two common meanings for this in chemistry. First, it can refer to any process used to make ethanol unfit for consumption (denatured alcohol). Second, denaturing can mean brea...
family - A family is a group of elements sharing similar properties. It is not necessarily the same thing as an element group. For example, the chalcogens or oxygen family consists of different elements from the nonmetal group. Kelvin - Kelvin is a unit of temperature. A Kelvin is equal in size to a degree Celsius, although Kelvin starts from absol...
node- A node is a location in an orbital with no probability of containing an electron. nucleon- A nucleon is a particle in the nucleus of an atom (proton or neutron). oxidation number The oxidation numberis the apparent charge on an atom. For example, the oxidation number of an oxygen atom is -2. period- A period is a row (left to right) of the pe...
salt- An ionic compound formed from reacting an acid and a base. solute - The solute is the substance that gets dissolved in a solvent. Usually, it refers to a solid that is dissolved in a liquid. If you are mixing two liquids, the solute is the one that is present in a smaller amount. solvent - This is the liquid that dissolves a solute in solutio...
unit cell- A unit cell is the simplest repeating structure of a crystal. unsaturated - There are two common meanings for unsaturated in chemistry. The first refers to a chemical solution that does not contain all the solute that can be dissolved. Unsaturated also refers to an organic compound with one or more double or triple carbon-carbon bonds. u...
- Anne Marie Helmenstine, Ph.D.
The meaning of PLATITUDINOUS is having the characteristics of a platitude : full of platitudes. How to use platitudinous in a sentence.
Use our revision notes to describe lattice structures for A Level chemistry in ionic and covalent substances. Learn more.
- The Structures of Metals. We will begin our discussion of crystalline solids by considering elemental metals, which are relatively simple because each contains only one type of atom.
- Unit Cells of Metals. The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell.
- The Structures of Ionic Crystals. Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
- Unit Cells of Ionic Compounds. Many ionic compounds crystallize with cubic unit cells, and we will use these compounds to describe the general features of ionic structures.
chem.libretexts.org · Bookshelves · Organic_Chemistry1: Structure and Bonding - Chemistry LibreTexts
Chapter Objectives. This chapter provides a review of material covered in a standard freshman general-chemistry course through a discussion of the following topics: the differences between organic and inorganic chemistry. the shapes and significance of atomic orbitals. electron configurations. ionic and covalent bonding. molecular orbital theory.
Oct 7, 2019 · An atom is composed of two regions: the nucleus, the center of atom contain proton and neutron, and the outer portion of the atom holds electrons in its orbit around the nucleus [1]. Ion. Ions are those species which have a positive or a negative charge.
