'Called alkali metals' presentation slideshows

Periodic Table of Elements

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Chapter 6 The Periodic Table

Chapter 6 The Periodic Table. Organizing the Periodic Table. In a grocery store, the products are grouped according to similar characteristics. With a logical classification system, finding and comparing products is easy.

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Why do the elements in a group have similar properties?

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Chapter 5

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Valence Electrons

Valence Electrons. When the groups in the periodic table are numbered from 1 through 8, the group number matches the number of valence electrons in the electron configuration of an element in that group. Valence electrons play a key role in chemical reactions.

262 views • 22 slides

Elements on Planet Earth

Elements on Planet Earth. In the Air , In the Crust, In the Water. Background. Our understanding of the elements has progressed from the Fire, Air, Earth, Water stage to the current theory that everything is composed of atoms. Elements In the Atmosphere.

706 views • 20 slides