Metals NonMetals and Semimetals Standard 1 b Students

Metals, Non-Metals, and Semimetals Standard 1. b - Students know how to use the periodic table to identify metals, semimetals, non -metals, and halogens.

ARRANGEMENT OF THE PERIODIC TABLE • Metals are on the left. • Nonmetals are on the right. • Hydrogen is the exception. Even though Hydrogen is on the left it is a nonmetal.

• Metals and nonmetals are separated by the semimetals (metalloids). How to Find the Semimetals: • A diagonal (stair step) line from Boron (B) to Polonium (Po) separates the metals from the nonmetals. Most elements on this line are semimetals (metalloids).

Properties of Metals Good Conductors (Heat and Electricity) Malleable and Ductile Shiny, Metallic Appearance Most Solid at Room Temperature (except Mercury) • Loses Electrons • Low ionization (ability to lose electrons) • Low electronegativity (ability to gain electrons) • •

Properties of Non. Metals • • • Brittle Nonductile Solids, liquids, or gases at room temperature Gain Electrons High Ionization High Electronegativity

Properties of Semimetals • Electronegativities between those of metals and nonmetals • Ionization energies between those of metals and nonmetals • Possess some characteristics of metals/some of nonmetals • Reactivity depends on properties of other elements in reaction • Often make good semiconductors

Stair Step line divides the Metals from the Non-Metals. Follow the Stair Step line to find the Metalloids! Metals Nonmetals

Color the Metals, Nonmetals, and Metalloids on your Periodic Table • Place in Binder

Periodic Table Instructions • Complete Periodic Table #2 • Label: Metals, Semimetals, Nonmetals, and Halogens • Number the periods 1 -7 • Number the Groups 1 -18 • Identify the different areas on the periodic table. Chemistry - Shearer - Standard 1 9

Answer Questions on Left Side Opposite Your Periodic Table • How many Groups does the periodic table have? • How many Periods does the periodic table have? • Which side of the periodic table are the metals on? • Which side of the periodic table are the nonmetals on? • List the semimetals? • Which category has the largest number of elements? Chemistry - Shearer - Standard 1