Definitions for F321

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Atom
The smallest particle of a chemical element that can exist
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Ion
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
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Ionic Bond
The electrostatic attraction between oppositely charged ions
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Molecule
A group of atoms bonded together, forming the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
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Compound
A thing that is composed of 2 or more separate elements; a mixture
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Covalent Bond
The sharing of electrons
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Allotrope
each of two or more different physical forms in which an element can exist. Graphite, charcoal, and diamond are all allotropes of carbon.
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Metallic Bond
Electrostatic attraction between a sea of negatively charged delocalised electrons and positively charged protons
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Electronegativity
The ability of an atom to attract the shared pair of electrons in a covalent bond
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Van der Waals
An intermolecular force that forms a temporary dipole between molecules due to the uneven distribution of electrons
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Hydrogen Bond
The electrostatic attraction between a H atom and a lone pair of a N,O or F atom. Strong, due to the high difference in electronegativity
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Isotope
Forms of the same element which contain the same number of protons but a different number of neutrons
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Relative Atomic Mass
The weighted mean mass of an atom of an element compared with 1 twelfth of the mass of a Carbon-12 atom
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Relative Isotopic Mass
The mass of an isotope of an element compared with the mass of 1 twelfth of the mass of a Carbon-12 atom
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Relative Formula Mass
The weighted mean mass of the atoms in a formula unit compared with the mass of 1 twelfth of an atom of Carbon-12
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First Ionisation Energy
Amount of energy need to remove one electron from each atom in one mole of gaseous atoms to form one mole of gaseous 1+ ions
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Mole
The base unit in Chemistry of representing an amount of a substance
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Empirical formula
The simplest whole number ratio of each element in a compound
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Molecular Formula
Number of atoms of each element in a molecule
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Acid
A proton donor
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Base
Proton Acceptor
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Alkali
Base mixed with water
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Salt
Compound formed from an acid. Hydrogen ions are replaced by metal ions
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Anhydrous
no water present
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Hydrated
water present
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Water of Crystallisation
Water molecules that form an essential part of the crystalline structure of a compound
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Reduction
Gain of electrons
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Oxidation
Loss of electrons
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Disproportionation
Redox reaction, where the same element is both oxidised and reduced.
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Other cards in this set

Card 2

Front

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Back

Ion

Card 3

Front

The electrostatic attraction between oppositely charged ions

Back

Preview of the back of card 3

Card 4

Front

A group of atoms bonded together, forming the smallest fundamental unit of a chemical compound that can take part in a chemical reaction

Back

Preview of the back of card 4

Card 5

Front

A thing that is composed of 2 or more separate elements; a mixture

Back

Preview of the back of card 5
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