The Atom + Electronic Configuration Additional Science GCSE Chemistry.

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Presentation transcript:

The Atom + Electronic Configuration Additional Science GCSE Chemistry

THE ATOM

The Atom Proton Neutron electron

The atom PropertyProtonsNeutronsElectrons ChargePositivenoneNegative Mass11Almost 0 Locationnucleus Shells orbiting nucleus

PEN it! K Mass number = P+N Proton (atomic) number Atom is neutral P=E P= Bottom number E= Bottom number N= Top number

ELECTRONIC CONFIGURATION

Activity! What is the atomic number and mass number of Lithium Li 7 3

Electronic Configuration Protons= the atomic number Electrons= the atomic number Neutrons= mass number – atomic number

Electronic Configuration 1 st shell- max 2 electrons 2 nd shell- max 8 electrons 3 rd shell- max 8 electrons 4 th shell- max 18 electrons e.g. Li 7 3 P= 3 E= 3 N= N N N TIP: Always put your electrons on in the order “North, East, South, West” to avoid later confusion!

Draw these Atoms! Lithium Sodium Calcium Carbon Oxygen Potassium You will need a periodic table!