quiz 2 group 1

Elements Quiz 2

notes from your power points

for class one
H							He
Flammable Lightest gas most abundant							Lighter than air nonflammable inert 2nd most common in universe came with Big Bang

Li	Be	B	C	N	O	F	Ne
Found by Joann "Lithose" means stone in greek In batteries, medication, ceramics Lightest solid metal Holds electric charge- lithium chloride	is a metal with 1000 degree melting point Used in tools, Space Shuttle Never pure metal in nature found in emeralds	Non-metalic Very Hard Found in mineral deposits Add to steal adds strength In Borax which makes glass resistant to heat Found in 1808 by french.	12.0107 is atomic weight in many compounds and in all life	Most abundant in atmosphere colorless and odorless used in bombs and laughing gas	most abundant in crust is a gas produced by photosynthesis Creates Ozone	This is Abby's and her computer broke. Hopefully she will be able to do it before the quiz on Monday.	Noble gas Stable 4th in universe yet .00018% of earths atmosphere Sued in signs and TVs Harmless

Na	Mg	Al	Si	P	S	Cl	Ar
Unstable Forms salt Used to cure food Once used as Headache remedy soft and reactive with water	Essential to life reacts w/water Highly flammable Burns white Used in fireworks	Found in clay 3rd most abundant in earths crust planes are made form it Does not rust	number 14 8th most commonly used Name comes from Greek word for "Flint" In cell walls, microchips, sand, clay and concrete 25% of earth's crust	5 electrons in outside ring found in 1669 when "preparing" urine In lamps, glass, matches and fine china. Will ignite in air In DNA and RNA burns red, white, black and colorless	Solid yellow Not soluble in water Will make compound with all elements except noble gas Smells like rotten eggs Egyptians used it to purify temples Found near volcanoes, hot springs and vents	7 in outer shell green/yellow gas combines with all elements strong odor not found in natural state most common with sodium- NaCl- slat In sea, drinking water, bleach, plastics Burns skin and used in war	18 is atomic number only solid in ice boiling and melting point very similar -160 degrees Is a noble gas with full valence shell 3rd most abundant in Atmosphere