Elements formative

What gives elements in a family or group similar properties?

They have the same number of electrons in their outer energy level

Elements in group one of the periodic table are called what?

Alkali metals

Atoms of what have two outer level electrons?

Alkaline Earth metals

what are two products made from calcium compounds?

Cement, and chalk

How does Calcium help you?

Keeps bones and teeth healthy

What are three Alkaline Earth metals?

Magnesium, Strontium, Barium

What are transition metals characterized by?

High melting points, density and conductivity

How is mercury different from other transition metals?

Mercury is liquid at room temperature

What is the first of the two bottom rows in the periodic table called?

Lanthanides

What is the second of two rows on the bottom of the periodic table called?

Actinides

Which lanthanide allows you to see red on a computer screen?

europium

Which actinide is used in smoke detectors?

americium

Why did Emperor Napoleon III use aluminum dinnerware?

Aluminum was considered more valuable than gold at the time.

The metalloids sillicon and geranium in group 14 are used to make what?

Computer chips

What are three compounds of carbon that are necessary for living things?

Proteins, carbohydrates, and fats

what is the hardest material known?

Diamond

What form of carbon is used as pigment?

soot

nitrogen is a what at room temp?

gas

Each element in the nitrogen group has how many electrons in the outer level?

5

What element can be found as a yellow solid?

Sulfur

Atoms of what group need to gain only one electron to have a complete outer level?

Halogens

What important uses do both chlorine and iodine have in common?

They are both used as disinfectants

Do noble gasses react with other metals or not?

they do not

what creates helium balloons float?

Their low density

What is the most abundant element in the world

Hydrogen