zerre, atom, molekül

التركية - الإنجليزية

تعريف zerre, atom, molekül في التركية الإنجليزية القاموس.

(Tıp) molecule

The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; a group of atoms held together by chemical bonds

{i} smallest unit in a substance or compound (usually composed of one or more atoms); tiny particle

The smallest unit of matter of a substance that retains all the physical and chemical properties of that substance, consisting of a single atom or a group of atoms bonded together Example: A single water molecule (H2O) consists of just one single oxygen atom bonded to just two hydrogen atoms There are thousands of water molecules in a single droplet of water Molecules are too small to be seen without the assistance of powerful microscopes

(nontechnical usage) a tiny piece of anything

Two or more atoms contained together by covalent bonds Includes chemical substances which are the building blocks of cells such as proteins, sugars and fats

In propositional logic, a compound proposition as opposed to a simple proposition or atom See atom; compound proposition Monotonicity The property of a system by which adding new wffs to a set of wffs cannot invalidate previously valid derivations from that set If A is any wff, and Γ and Δ any sets of wffs, then a system is monotonic iff ΓA implies Δ,ΓA In non-monotonic logics, derivations valid from Γ can be invalid from ΓΔ Less formally, in non-monotonic logics, a conclusion that follows from a set of premises might no longer follow when new propositions are added to the set of premises and none subtracted

One of the very small invisible particles of which all matter is supposed to consist

A molecule is the smallest amount of a chemical substance which can exist by itself. the hydrogen bonds between water molecules. the smallest unit into which any substance can be divided without losing its own chemical nature, usually consisting of two or more atoms (molécule, from moles ). Smallest identifiable unit into which a pure substance can be divided and retain its composition and chemical properties. Division into still smaller parts, eventually atoms, involves destroying the bonding that holds the molecule together. For noble gases, the molecule is a single atom; all other substances have two (diatomic) or more (polyatomic) atoms in a molecule. The atoms are the same in elements, such as hydrogen (H2), and different in compounds, such as glucose (C6H12O6). Atoms always combine into molecules in fixed proportions. Molecules of different substances can have the same constituent atoms, either in different proportions, as in carbon monoxide (CO) and carbon dioxide (CO2), or bonded in different ways (see isomer). The covalent bonds in molecules give them their shapes and most of their properties. (The concept of molecules has no significance in solids with ionic bonds.) Analysis with modern techniques and computers can determine and display the size, shape, and configuration of molecules, the positions of their nuclei and electron clouds, the lengths and angles of their bonds, and other details. Electron microscopy can even produce images of individual molecules and atoms. See also molecular weight

Cf

A group of atoms arranged to interact in a particular way; one molecule of any substance is the smallest physical unit of that particular substance

Smallest part of an element or compound that exhibits the properties of the specific element or compound A molecule is normally considered a group of atoms

The smallest part of a chemical compound that can take part in a chemical reaction

(physics and chemistry) the simplest structural unit of an element or compound

The smallest particle, consisting of two or more atoms

A group of atoms so united and combined by chemical affinity that they form a complete, integrated whole, being the smallest portion of any particular compound that can exist in a free state; as, a molecule of water consists of two atoms of hydrogen and one of oxygen

in chemistry, the smallest particle of a specific element or compound that retains the chemical properties of that element or compound; a group of atoms held together by chemical bonds

a tiny amount

a substance composed of two or more atoms held together by chemical bonds

The smallest unit of a substance that can exist alone and retain the character of that substance

The smallest amount of a specific chemical substance that can exist alone (The break a molecule down into its constituent atoms is to change its character A molecule of water, for instance, reverts to oxygen and hydrogen )

الواصلة

zer·re, a·tom, mo·le·kül