the basics of chemistry
Periodic table (1)
Matter and elements
Organizing the Elements Atomic Mass: the average mass of the isotopes (same element but different number of neutrons) of that element Mendeleev original.
click on a number Click on a group name to go to more information.
Chemistry Revision Material. Topics: The Periodic Table –The first 20 elements (name and symbol) –Metals/Non-Metals/Metalloids/Noble Gases –Groups/Periods.
Non-Metals & Metalloids. Properties of Non-Metals Non-metals are poor conductors of heat and electricity. Non-metals are not ductile or malleable. Solid.
Elements Science has come along way since Aristotle’s theory of Air, Water, Fire, and Earth. Scientists have identified 90 naturally occurring elements,
Nonmetals and Metalloids. Life on Earth depends on certain nonmetal elements. The air you and other animals breathe contains several nonmetals, including.
The Periodic Table Chapter 6. Elements Science has come along way since Aristotle ’ s theory of Air, Water, Fire, and Earth. Scientists have identified.
The Periodic Table. Introduction –The periodic table is made up of rows of elements and columns. –An element is identified by its chemical symbol. –The.
Physical Property A characteristic of a substance that can be observed without changing the substance into something else See page 22.
