| PS1.A: Structure and Properties of Matter The periodic table orders elements horizontally by the number of protons in the atom's nucleus and places those with similar chemical properties in columns. The repeating patterns of this table reflect patterns of outer electron states. (HS-PS1-2) |
Examples of metals are the coins in your pocket and the dinnerware you use at a sitdown restaurant. On the opposite side of the periodic table are the nonmetals. They are mostly gases at room temperature, but they vary greatly in properties and appearance. The air we breathe is made up mostly of nonmetal elements: nitrogen, oxygen, and argon. Between those two groups are the metalloids which have some of the properties of each group. Metalloids are like silicon which can be made to carry a current or insulate. This makes it perfect for small circuitry like computers.
| CCSS.ELA-Literacy.WHST.11-12.4 Produce clear and coherent writing in which the development, organization, and style are appropriate to task, purpose, and audience. |