stupid dumbass test

Iron

(Fe)

Cobalt

(Co)

Nickel

(Ni)

Copper

(Cu)

Zinc

(Zn)

Gallium

(Ga)

Germanium

(Ge)

Arsenic

(As)

Selenium

(Se)

Bromine

(Br)

Krypton

(Kr)

Rubidium

(Rb)

Strontium

(Sr)

Yttrium

(Y)

Zirconium

(Zr)

Niobium

(Nb)

Molybdenum

(Mo)

Technetium

(Tc)

Ruthenium

(Ru)

Rhodium

(Rh)

Palladium

(Pd)

Silver

(Ag)

Cadmium

(Cd)

Indium

(In)

Tin

(Sn)

Antimony

(Sb)

Metals

Lustrous (shiny) ● Malleable (can be shaped easily) ● Ductile (can be shaped into a thin wire) ● Good conductors of heat and electricity ● Mostly solid at room temperature

Metalloids

Share characteristics between metals and nonmetals ● Shiny, like metals ● Brittle, like nonmetals ● Semiconductors of electricity ● Other properties vary

Nonmetals

Dull, brittle ● Not malleable or ductile ● Mostly gas at room temperature ● Poor conductors of heat and electricity (also called insulators)

Alkali Metals: Group 1

Have one valence electron → Extremely reactive with air/water ● Shiny, soft ● Malleable

Alkaline Earth Metals: Group 2

Reactive ● Silvery colored ● Malleable, Soft

Transition Metals: Group 3-12

Good conductors ● Hard, malleable, ductile ● Shiny ● Used in jewelry, coins, construction

Halogens: Group 17

Have 7 valence electrons → Extremely reactive ● Poor conductors ● Combine with metals to form salts ● Brittle (when solid) ● Used to kill harmful microorganisms (Cl, I)

Noble Gases: Group 18

Have a full valence shell (8) → Extremely stable (unreactive) ● Poor conductors ● Colorless, odorless ● Gas at room temperature