Notes: Chapter 13-2A



Notes: Chapter 13-2A

Grouping the Elements

Groups 1 and 2:

Elements are only found combined with other elements in nature.

Group 1:

Metals

___ electron in the outer level

Useful compounds:

__________________ = table salt

__________________ = unclogs drains

__________________ = used in photography

Group 2:

Metals

____ electrons in the outer level

Useful compounds:

__________ + other metals (

____________________ = in cement, plaster, chalk, and bones

Groups 3-12:

Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn

Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd

La, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg

Ac, Rf, Db, Sg, Bh, Hs, Mt, Uun, Uuu, Uub

Metals

___ or ___ electrons in the outer level

____________________ than alkaline-earth metals

Mercury-in thermometers

Titanium-in the artificial hip

Iron-reacts with oxygen and rusts

Gold-in jewelry

Lanthanides and Actinides

Lanthanides: 58-71

Shiny, reactive metals

Used in steels

Eu (europium)-red color on a computer monitor

Actinides: 90-103

Radioactive (unstable)

94-103 do not occur in nature, but produced in labs

Am (americium)-used in some smoke detectors

Groups 13-16

Group 13: Boron Group

B, Al, Ga, In, and Tl

One metalloid and four metals

3 electrons in the outer level

Reactive

Solid at room temperature

Aluminum-the most abundant metal in Earth’s crust; used in auto parts, air craft, foil, cans, and wires

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