Atomic Structure, Parts of Atoms - General Chemistry - Lecture Slides, Slides of Chemistry

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Atomic Structure

What are the 3 major parts of an

atom?

Draw a diagram showing the

location of each part of the atom.

Draw a diagram showing the

location of each part of the atom.

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Draw a diagram showing the

location of each part of the atom.

http://www.bmb.psu.edu/courses/bisci004a/chem/atoms.jpg

Draw a diagram showing the

charges of each part of the atom.

Draw a diagram showing the

charges of each part of the atom.

Describe Proton

Describe Neutron

Describe Neutron

• Neutrons are uncharged particles found in

the atomic nucleus. Neutrons werediscovered by James Chadwick in 1932.

• Experiments done in the late 1960's and

early 1970's showed that neutrons aremade from other particles called quarks.Neutrons are made from one 'up' quarkand two 'down' quarks.

Describe Electron

Electrons are negatively charged particles

that surround the atom's nucleus.Electrons were discovered by J. J.Thomson in 1897. Electrons determine properties of the atom.

Chemical reactions involve sharing orexchanging electrons.

Describe Nucleus

Describe Quark

Describe Quark

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Believed to be one of the basic building blocks ofmatter. Quarks were first discovered inexperiments done in the late 1960's and early1970's.

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Three families of quarks are known to exist.Each family contains two quarks. The first familyconsists of Up and Down quarks, the quarks thatjoin together to form protons and neutrons.

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The second family consists of Strange andCharm quarks and only exist at high energies.

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The third family consists of Top and Bottomquarks and only exist at very high energies.