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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.