Superior letterIn typography and handwriting, a superior letter is a lower-case letter placed above the baseline and made smaller than ordinary text, but is designed individually and generally shaped slightly thicker to be more visually harmonious, rather than made simply by automation of software shrinking and raising a standard character the way that generic modern superscripts on word processors tend to do.
Baseline (typography)In European and West Asian typography and penmanship, the baseline is the line upon which most letters sit and below which descenders extend. In the example to the right, the letter 'p' has a descender; the other letters sit on the (red) baseline. Most, though not all, typefaces are similar in the following ways as regards the baseline: capital letters sit on the baseline.
IsotopeIsotopes are distinct nuclear species (or nuclides) of the same chemical element. They have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), but different nucleon numbers (mass numbers) due to different numbers of neutrons in their nuclei. While all isotopes of a given element have virtually the same chemical properties, they have different atomic masses and physical properties.
TypographyTypography is the art and technique of arranging type to make written languagelegible and readable when displayed. The arrangement of type involves selecting typefaces, point sizes, line lengths, line spacing, letter spacing, and spaces between pairs of letters. The term typography is also applied to the style, arrangement, and appearance of the letters, numbers, and symbols created by the process.
FractionRatio of two numbersA cake with one quarter (one fourth) removed. The remaining three fourths are shown by dotted lines and labeled by the fraction 1⁄4.A fraction (from Latin: fractus, "broken") represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight-fifths, three-quarters.
CarbonChemical element with atomic number 6 (C)–↑C↓Siboron ← carbon → nitrogen
HydrogenChemical element with atomic number 1 (H)–↑H↓Li(none) ← hydrogen → helium
Subatomic particleIn physics, a subatomic particle is a particle smaller than an atom. According to the Standard Model of particle physics, a subatomic particle can be a composite particle or an elementary particle. A composite particle, such as a proton or a neutron, is composed of other particles, while an elementary particle, such as an electron, is not composed of any substructure. Particle physics and nuclear physics study these particles and how they interact.
FormulaIn science, a formula is a concise way of expressing information symbolically, as in a mathematical formula or a chemical formula. The informal use of the termformula in science refers to the general construct of a relationship between given quantities. The plural of formula can be either formulas (from the most common English plural noun form) or, under the influence of scientific Latin, formulae (from the original Latin).
Chemical compoundA chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound. A compound can be transformed into a different substance by a chemical reaction, which may involve interactions with other substances.
OxygenChemical element with atomic number 8 (O)–↑O↓Snitrogen ← oxygen → fluorine
Expression (mathematics)In mathematics, an expression is an arrangement of symbols following the context-dependent, syntactic conventions of mathematical notation. Symbols can denote numbers, variables, operations, and functions. Other symbols include punctuation marks and brackets, used for grouping where there is not a well-defined order of operations.subscriptRelated word or term.superscriptRelated word or term.Appendix:SubscriptRelated word or term.*As an Amazon Associate I earn from qualifying purchases.