Chemistry GCSE: Atoms + Elements + Compounds + Mixtures
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Last updated 1:33 PM on 9/11/22
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15 Terms
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Electrons
________ have virtually no mass.
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Isotopes
________ are different forms of the same elements, they have the same number of protons but different numbers of neutrons.
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Elements
________ can exist as a number of different isotopes.
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bonds
Making ________ involves atoms giving, taking or sharing electrons.
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Relative atomic mass
________ is used to refer to the element as a whole, this is the average mass of the element.
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Elements
________ are represented by a one or two letter symbols.
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To get the number of neutrons just atomic number
mass number
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Covalent Bonding
Each atoms shares an electron with another atom
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Sum of ( isotope abundance x isotope mass number) / abundance of all the isotopes
Relative Atomic Mass
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Nucleus Size
1 x (10)-14
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Mixture
No chemical bond between different parts
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Nucleus Symbol
Atomic number + mass number
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Atomic Number
Proton Number
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Mass number
Proton + Neutron Number
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Neutron Number
Mass number - Atomic Number
Flashcards (22)