Laziness travelsLaziness travelsso slowly thatso slowly thatpoverty soon poverty soon
overtakesovertakeshim.him.
Group Name for IA
• Alkali Metals
Group Name for IIA
• Alkaline Earth Metals
How many valence electrons does Chlorine have?
• 7
Calcium has how many energy levels?
• 4
What is the oxidation number for group IIA?
• +2
What is the oxidation # for zinc?
• +2
____ is when metals can be hammered into thin sheets.
• Malleable
What is the group number for sulfur?
• VIA
How many valence electrons does Magnesium
have?
• 2
What is the period number for iron?
• 4
Periodic Tablethe elements around us.
Lesson 3
Hydrogen and HeliumNumber 1 and 2
• Makes up 90 % of the universe.
Carbon – Atomic # 6
• Found in all living things or previously living things. (fossil fuels)
Hope Diamond Necklace
Calcium
• Needed for strong bones and teeth.
Iron
• Found in the hemoglobin and helps oxygen to be carried in the body
Nitrogen
• Found in the greatest % in the atmosphere.
• Most of the world’s nitrogen is not available to living things.
• Nitrogen makes up over ¾ of the atmosphere.
Oxygen
• Found in the greatest % in the earth's crust.
Mercury poisoning
• Occurred during the 1800's due to Mercury being used in treating animal furs for felt hats.
• This affected the nervous system and symptoms were memory loss, impaired vision and insanity.
• (Thus the Mad Hatter in Alice in Wonderland)
Metals that are dangerous
• If ingested in too great a quantity Sb, As, Cd, Cr, Cu, Pb, Hg, Ni, Sn, V, and Mn .
• Enter the body primarily through the food chain. Once ingested they are deposited in the kidneys, liver and brain, causing sickness or even death.
Synthetic
• Elements not found in nature but are produced artificially.
• Man made.
Seaborgium (106)• To create they must change a
nucleus. • Using a linear accelerator to cause a
high-energy collision between two particles.
• To do this they use oxygen and californium.
Lanthanide's
• Elements 58 – 71
• Sometimes called the rare earth elements.
Actinides
• Elements 90-103
• All are radioactive
IUPAC
• Stands for - International Union of Pure and Applied Chemistry
• Represents chemists from all over the world.
Nitinol
• An alloy of nickel and titanium used in eyeglass frames.
Alloy
• Mixture of two or more metals at the molten state.