Chemistry Unit 1

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Atomic number
Number of protons
1 of 12
Mass number
number of protons + number of neutrons
2 of 12
Isotope
Same number or protons but different number of neutrons.
3 of 12
Relative atomic mass
The average mass of an atom of an element over 1/12 the mass of a carbon atom
4 of 12
Relative molecular mass
The average mass of a molecule over 1/12 the mass of a carbon atom
5 of 12
Ionisation energies
The energy required to remove one electron from the outer shell.
6 of 12
Ionic Bond
Electrons transferred from metals to non-metals
7 of 12
Covalent bonding
Electrons shared between atoms
8 of 12
Metallic bonding
Electrons are spread between metal ions to form a lattice of positive ions held together by a sea of delocalised electrons
9 of 12
Electronegativity
The ablity of an atom to pull electrons towards itself in a covalent bond
10 of 12
Empirical formula
The simplest ratio of atoms of each element present in a compound
11 of 12
Molecular Formula
The actual number of atoms of each element in a compound
12 of 12

Other cards in this set

Card 2

Front

number of protons + number of neutrons

Back

Mass number

Card 3

Front

Same number or protons but different number of neutrons.

Back

Preview of the back of card 3

Card 4

Front

The average mass of an atom of an element over 1/12 the mass of a carbon atom

Back

Preview of the back of card 4

Card 5

Front

The average mass of a molecule over 1/12 the mass of a carbon atom

Back

Preview of the back of card 5
View more cards

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