atom

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atom
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Zusammenfassung der Ressource

Frage Antworten
WHAT IS AN ATOM? An atom is the smallest particle of an element that has all the chemical properties of that element
Atomic Theory Plum Pudding Model
Sub-atomic Particles
Electronic configuration It's how electrons are arranged in an atom Energy levels
Atomic Number This is the number of protons in an atom Number of protons = Number of electrons e.g Na has 11 protons, so it's atomic number is 11 Mass Number This is the total number of protons + neutrons in the atom. E.g a Sodium atom that has 11 protons and 12 neutrons will have a mass number of 23
Nuclide Notation how to represent atoms by displaying their atomic and mass numbers
Nucleons Isotopes Atoms of the same element that have different number of neutrons
Relative Atomic Mass (R.A.M) How many times does the mass of 1/12 th the mass of carbon fit into one atom of that element
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