Physical Science Mr. Bythwood Protons (+): Atomic Number Neutrons: Atomic Mass minus Protons Electrons (-): Same number as Protons.

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Presentation transcript:

Physical Science Mr. Bythwood

Protons (+): Atomic Number Neutrons: Atomic Mass minus Protons Electrons (-): Same number as Protons

Protons (+): Atomic Number Neutrons: Atomic Mass minus Protons Electrons (-): Same number as Protons

Protons (+): Atomic Number Neutrons: Atomic Mass minus Protons Electrons (-): Same number as Protons

Atomic Particles ParticleLocation Mass in amuCharge Proton Neutron Electron

Atomic ParticlesParticleLocation Mass in amuChargeProton Neutron Electron What is amu???? amu is short for atomic mass unit 1 amu = × kilograms EXAMPLE: If you weigh 150 lbs, what is that in kilograms? 1 kg = 2.2 lbs 150 lbs 2.2 lbs 68.2 kg 1 kg EXAMPLE: If you weigh 150 lbs, what is that in amu? 68.2 kg 1.66 x kg 1 amu 4.11 x amu

Atomic Particles ParticleLocation Mass in amuCharge Proton Neutron Electron Nucleus Cloud

Atomic Inventory ElementSymbolAtomicNumber Mass Number ProtonsNeutronsElectrons He Mg Fe Ar Helium Magnesium Iron Argon

Atomic Inventory ElementSymbolAtomicNumber Mass Number ProtonsNeutronsElectrons Zn Br Al U Zinc Bromine Aluminum Uranium 27

Atomic Inventory ElementSymbolAtomicNumber Mass Number ProtonsNeutronsElectrons Na Kr Ca Ag Sodium Krypton Calcium Silver

The End  This presentation was created for the benefit of our students by the Science Department at Howard High School of Technology  Adjustments made by Mr. Madigan and Mr. Spraggins  Please send suggestions and comments to