Name that Family!

2

• Highly reactive• Nonmetals• Diatomic in elemental form• Form -1 ions; 7 valence electrons• Prevent tooth decay, turn stains clear,

disinfection, thyroid health

3

• Reactive• Nonmetal and semimetals• Form +3 ions; 5 valence electrons• Most abundant metal in Earth’s

crust– refining this element uses 5% of

country’s electricity– Used in cans, airplanes– Easily recycled

4

• Reactive, but do not need to be stored in oil• Soft metals• Form +2 ions; 2 valence electrons• Forms a hard white crust on its surface when it reacts

with oxygen in the air – “oxidized”

5

• Wide variety of properties• Metals, semimetals, and

nonmetals• Share electrons, or form +4

or -4 ions; 4 valence electrons

• Form allotropes like graphite and diamond

• Semiconductors in computer technology

6

• Typical metals:– Malleable– Ductile– Conduct heat and electricity– Mostly solids

• Varying charges; 2 valence electrons

7

• Contains metal, nonmetal, and semimetals• One element is 78% of the Earth’s atmosphere.• One element is found in matches.• Two elements are found in DNA• Form -3 ions; 5 valence electrons; can share electrons

8

• Soft, silver metals• Extremely reactive• So reactive with

water that they need to be stored in oil

• Form +1 ions; 1 valence electron

9

• Unreactive• Gases• Do not form ions• 8 valence electrons• Larger elements in this

family can form compounds, but only in a lab.

10

• Mostly nonmetals; some semimetals

• Form -2 ions or share electrons

• 6 valence electrons• One element is the most

abundant on Earth.• One element is found in

solar power devices and copy machines.