Metalloid

Science
Science
Science 1. periodic law-law that states the physical chemical properties of the elements are periodic functions of their atomic numbers 2. group-column of elements in the periodic table; family 3. family-column of elements in the periodic table; group 4. period-horizontal row of elements in the periodic table 5. metal-element that is a good conductor of heat electricity, is shiny, has a high melting point, tends to lose electrons 6. luster-shininess 7. ductile-able to be drawn into a thin wire 8
Atom Model
Atom Model
Atom Model Chemistry Name of element: Arsenic Symbol: As Atomic Number: 33 Atomic Mass: 74.92 (approx. 75) Electron Configuration: 2-8-18-5 Location on periodic table: Group 15 Period Family: Itís period numbers 4 and it is in the family of non-metals/metalloids. Radioactivity: none Color: dark gray to black. History: Although arsenic compounds were mined by the early Chinese, Greek and Egyptian civilizations, it is believed that arsenic itself was first identified by Albertus Magnus, a German a
WATER OF HYDRATION
WATER OF HYDRATION
WATER OF HYDRATION Objective: To determine experimentally the water of hydration for the hydrate Borax. Theory: In this experiment, we examined and found the water of hydration of the hydrate borax. Borax is derived from the element Boron, which is a metalloid chemical element with properties between those of carbon and aluminum(95CI). Boron is relatively rare, constituting only 3 PPM of the Earthís crust(95CI). It is most commonly found in the borate minerals borax, and kernite(95CI). Borax is