Physical States of Elements @ 25 degree Celcius and normal atmosphere pressure

Semimetals

B, Si, Ge, As, Sb, Te, Po, At; metalloids

Nonmetals

Nonmetals (except H) are located on the top right of the periodic table, right of the stair step line

Metals and nonmetals on periodic table

Nonmetals with the exception of H are located on top-right of table Semimetals - are along the stair-step following B (except Al is a metal) All remaining elements are metals -located to left of of the stair step line

Nonmetals

dull appearance brittle many gases density - usually low poor conductors - make better insulators

What is the difference between chemical and physical changes

physical changes do not change formula - all atoms remain bonded in the same fashion, only the state of matter changes chemical change does change formula - you can produce a totally different chemical with atoms bonded in a different fashion.

Metals

shiny appearance malleable ductile most solids density - usually high good conductors of heat and electricity

which state of matter does not have it's own shape, but does have volume

Liquid

6 physical changes that occur between state of matter

Melting Freezing Boiling Condensing Sublimation Deposition

What diatomic element is a liquid at room temp and pressure

Bromine

Liquids only

Bromine (Br) and Mercury (Hg)

What is the physical shape at room temp and pressure for:

Chlorine - Gas Bromine - Liquid Iodine - Solid Carbon - Solid

What is the name of the physical change when a gas turns into a solid

Deposition

Which state of matter does not have its own shape or volume

Gas

Which state of matter is largely empty space

Gas

which physical state has variable volume and variable shape

Gas

At room temperature and normal atmospheric pressure (25C & 1 atm), elements occur as gases:

H2 -Hydrogen N2 - Nitrogen O2 - Oxygen F2 - Fluorine Cl2 - Chlorine

7 diatomic elements

H2(g), N2(g), F2(g) O2(g), I2(s) Cl2(g), Br2(l),

Formula for water after it is boiled

H2O so H2O (g)

Noble Gases

He -Helium, Ne - Neon, Ar - Argon, Kr - Krypton, Xe - Xenon, Rn - Radon

5 diatomic gases

Hydrogen - H2 Chlorine - Cl2 Nitrogen - S2 Fluorine - F2 oxygen - O2

Only diatomic solid

I - Iodine

what diatomic element is a solid at room temp and pressure

Iodine

which state of matter has constant shape and volume

Solid

which state of matter is most dense

Solid