Atomic weight

Atomic weight

The weight of an atom is called as atomic weight.

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Category: Basic science
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Related terms

atomic weight

Medical devices; Radiology equipment

The mass of an atom, expressed in atomic mass units. For example, the atomic number of helium-4 is 2, the atomic mass is 4, and the atomic weight is 4.00026.

atomic weight

Biology; Cell biology

The sum of the weights of an atom's protons and neutrons, the atomic weight differs between isotopes of the same element.

atomic weight

Engineering; Electronic engineering

1. The mass of a particular atom in atomic mass units (amu). 2. A number characterizing the average mass of individual atoms for a specific isotope of an element. Thus, carbon 12 ...

atomic weight

Physics; General physics

Weighted average of the masses of stable isotopes of an element as they occur in nature, based on the abundance of each isotope of the element and the atomic mass of the isotope ...

atomic weight

Geography; Physical geography

Combined weight of an atom's electrons, protons, and neutrons.

atomic weight

Biology; Ecology

The weighted average of the masses of naturally occurring isotopes of a given element.

fahrenheit

Science; Basic science

This is Fahrenheit scale of temperature, in which the freezing point of water is set at 32 degrees and the boiling point of water is set at 212 degrees.

bone marrow

Science; Basic science

The soft,sponge like material that fills the center of the bones of mammals. Most blood cells form in the bone marrow.

boiling point

Science; Basic science

The temperature at which a liquid changes to a gas or vapour.The vapours moving out of the liquid create so much pressure that they form bubbles.

bond

Science; Basic science

An attraction between atoms that holds them together in a molecule or crystal.Bonds are formed when one or more electrons are shared between atoms.

apogee

Science; Basic science

The point in the orbit of an object in space, such as the Moon, where it is farthest from the object it revolves around, such as Earth.

alpha particles

Science; Basic science

A particle of matter that is made of two protons and two neutrons. Alpha particles shoot out of nucleus of some radio-active element when they break down into smaller elements ...