The Periodic Table of Elements By: Michelle P. Stover

Periodic Table in rows or columns, highglighting - a tabular arrangement of elements in rows or columns, highglighting the regular repetition of properties of the elements. Dmitri Mendeleev History of the periodic table

Properties of the elements periods and groups atomic number and atomic weights Metals, nonmetals, and metalloids

PERIODS AND GROUPS IA – VIIIA = Main Group Elements IIIB – IIB = Transitional Elements All Below = Inner Transitional Elements Group 1 18 IA VIIIA 2 13 14 15 16 17 IIA IIIA IVA VA VIA VIIA 9 3 4 5 6 7 8 10 11 12 VIIIB IIIB IVB VB VIB VIIB IB IIB Lathanides Actinides

1 H Atomic number Atomic symbol Atomic weight 1.00794 Atomic weight Atomic number is the number of protons in the nucleus of an atom. Atomic weight is the average atomic mass for the naturally occurring element, expressed in atomic mass units.

Metals, Nonmetals and Metalloids A metal is a substance or mixture that has a characteristic luster or shine and is a good conductor of heat and electricity. A nonmetal is an element that does not exhibit the characteristics of a metal. A metalloid, or semimetal, is an element having both metallic and nonmetallic properties.

B Si Ge As Sb Te Po At

Getting to know the elements Pick an element you’d want to talk about in class. Click on: about my element Click on the element and write a brief description that you will share with the class.