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 The atoms of all elements are made up of a central nucleus with orbiting electrons. ◦ A nucleus is made up of positively charged PROTONS and neutral.

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Presentation on theme: " The atoms of all elements are made up of a central nucleus with orbiting electrons. ◦ A nucleus is made up of positively charged PROTONS and neutral."— Presentation transcript:

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2  The atoms of all elements are made up of a central nucleus with orbiting electrons. ◦ A nucleus is made up of positively charged PROTONS and neutral NEUTRONS. ◦ ELECTRONS are negatively charged and orbit around the nucleus.

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4  In order to organize elements we need to classify them.  To classify and name an element we look at the number of PROTONS that the atom has. The number of PROTONS defines the element

5  To organize the elements we use the PERIODIC TABLE. The periodic table organized elements in the order of the number of protons each atom contains

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7  How the table is actually organized

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9  In each box of the periodic table there is information about the element B Boron 5 Atomic Number (The number of Protons) Element symbol Name of Element


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