chemistry

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relative atomic mass
the average mass of an atom of element compared to 1/12 the mass of carbon-12
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molecular formular
gives the total number of atoms per element present in the compound/molecule/etc
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absolute zero
lowest possible state a matter can exist in 0kelvin
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abundance ratio
Abundance ratio is the ratio of the number of atoms of one isotope to the number of atoms of another isotope in the same sample.
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activation energy
The minimum amount of energy required to initiate a reaction and is denoted by Ea.
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alkali metal
An alkali metal is any of the elements found in Group IA of the periodic table . Alkali metals are very reactive chemical species which readily lose their one valence electron to form ionic compounds with nonmetals .
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alkane
An alkane is a hydrocarbon containing only single carbon -carbon bonds .
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alkene
An alkene is a hydrocarbon containing a double carbon - carbon bond .
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alloy
Alloy Definition: An alloy is a substance made by melting two or more elements together, at least one of them a metal. An alloy crystallizes upon cooling into a solid solution, mixture, or intermetallic compound.
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anhydrous
Anhydrous literally means 'no water'. Substances without water are anhydrous.
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aqueous
Aqueous is a term used to describe a system which involves water. The word aqueous is also applied to a solution or mixture in which water is the solvent. When a chemical species has been dissolved in water, this is denoted by writing (aq) after the
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atom
An atom is the defining structure of an element , which cannot be broken by any chemical means. A typical atom consists of a nucleus of protons and neutrons with electrons orbiting this nucleus
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atomic ion
An atomic ion is an atom which has gained or lost at least one electron resulting in a net positive or negative charge on the atom.
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atomic number
The number of protons in an element.
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atomic mass
Atomic mass or atomic weight is the average mass of atoms of an element , calculated using the relative abundance of isotopes in a naturally-occurring element. Also Known As: Atomic
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Other cards in this set

Card 2

Front

gives the total number of atoms per element present in the compound/molecule/etc

Back

molecular formular

Card 3

Front

lowest possible state a matter can exist in 0kelvin

Back

Preview of the back of card 3

Card 4

Front

Abundance ratio is the ratio of the number of atoms of one isotope to the number of atoms of another isotope in the same sample.

Back

Preview of the back of card 4

Card 5

Front

The minimum amount of energy required to initiate a reaction and is denoted by Ea.

Back

Preview of the back of card 5
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