Last Minute Chem Review

What is Group 1?

What is Group 1?

Alkali metals

Group 1/Alkali Metals:

Li, Na, Rb, Cs, Fr

Group 1/Alkali Properties:

Low densities/melting points, soft, reactive, not “free,” reacts in water/produces basic solutions with water.

What is Group 2?

Alkaline Earth Metals

Group 2/Alkaline Earth Metals:

Be, Mg, Ca, Sr, Ba, Ra

Group 2/Alkaline Earth Metal Properties:

Harder (than G1), tarnishes quickly, low densities, reactive (not as much as G1), forms basic solutions, never “free.”

What is Group 13?

Aluminum

Group 13/Aluminum Group Elements:

B, Al, Ga, In, TI

Group 13/Aluminum Group Properties:

Nonmetal/metals, lightweight metal for aircrafts, rare elements.

What is Group 14?

Carbon

Group 14/Carbon Group Elements:

C, Si, Ge, Sn, Pb

Group 14/Carbon Group Properties:

Nonmetal (organic compound), metalloids (semi-conductors), metals (poisonous).

What is Group 15?

Nitrogen

Group 15/Nitrogen Elements:

N, P, As, Sb, Bi

Group 15/Nitrogen Group Properties:

Nonmetals (essential to life), Metalloids (toxic to life), Metal.

What is Group 16?

Oxygen

Group 16/Oxygen Group Elements:

O, S, Te, Po

Group 16/Oxygen Group Properties:

Nonmetals (essential to life), Metalloids (semi-conductor/toxic), Metal (radioactive).

What is Group 17?

Halogens

Group 17/Halogen Group Elements:

F, CI, Br, I, At

Group 17/Halogen Properties:

All reactive nonmetals, radioactive, essential to life.

What is Group 18?

Noble Gases

Group 18/Noble Gases Elements:

He, Ne, Ar, Kr, Xe, Rn

Group 18/Noble Gases Properties:

Not reactive (inert), exists as separate atoms, no naturally formed compounds.

Most active metal?

Cesium/Francium

Most active nonmetal?

Flourine

As atoms become heavier and larger—

their properties become more metallic in character

Transition Metals are found:

Groups 3-12, 4th-7th periods

What block are Transition Metals?

D-block.