Also, all noble gases have 8Įlectrons in their outer shell which makes them very stable. This keeps them from making compounds easily. Group 17 includes the halogens and are five non-metallicĮlectrons in their outer shells and an oxidation number of -1. They are very brittle, can be a gas (oxygen) or a solid (carbon), have no metallic luster, do not reflect light and have oxidation numbers of +/-4, -3, & -2. They are not able to conduct heat ore electricity well. Metalloids, such as silicon and germanium, are semi-conductors. They have properties of both metals and non-metals.
Their oxidation numbers are +3, +/14, and -3.īetween the metals and non-metals along a boundary. They are solid, have high density, and are opaque. They do not exhibit a variety of oxidation states, they have valence electrons only in the outer shells. They are malleable and ductile but are not the same as transition elements. Groups 13, 14, & 15 include the other metals elements. They have valence electrons in more than one shell and exhibit several common oxidation states. They are malleable and ductile and also conduct heat and electricity. Groups 3 through 12 include 38 elements called transition metals. Metallic elements and have an oxidation number of +2, making them very
Group 2 includes the alkaline earth elements. They are malleable, ductile, are good conductors of heat and electricity and are softer than most metals. They have just one electron in their outer shell, and they are ready to lose it in ionic bonding with other elements. They are highly reactive and do not occur freely in nature. Group 1 of the periodic table are the alkali metals. The Periodic table can be divided into nine families of elements each having similar properties. This Periodic Table shows that there is nine different families some example are the Non metals and Alkali Metals and so forth down the line, as seen on the image to the side.
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