Group+4Hr7

=GROUP 4 =

Titanium (Ti)

Titanium is a grayish metal but it can be found white. It is a very strong metal.

Element category- transition metal

Phase- Solid

melting point 1660°C

boiling point 3287°C

Density 4.5g/cm³

Atomic # 22

Atomic mass 48

number of protons 22

number of neutrons 22

number of electrons 26

electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d2 Quatnum numbers n=3 I=2 MI=1 MS=1/2  ISOTOPES

To see all of the isotopes click here []

FUN FACTS  In 1791, William Gregor of England was the first on to discover titanium. The name was derived from the titans of greek mythology, known for thier extreme and superior strength. Titanium is used in cars and trucks to make them lighter and go faster.

CHEMICAL PROPERTIES

Titanium is resistent to chlorine and water. This element becomes raidoactive after it is destroyed. IT also is not attracted to magnets.

PHYSICAL PROPERTIES

This element does not conduct heat or electricity. It is 60% heavier compared to Aluminum and it is two times stronger than aluminum.

Zirconium (Zr) 

Zirconium is a lustrous,greyish-white, strong ductile metallic element obtained primarily from zirocon and used chiefly in ceramic and refactory compounds as an alloying agent and in nuclear reactors as a highly corrsion resistant alloy.

Atomic # 40

number of protons 40

number of neutrons: can very

number of electrons 40

electron confiuration 1s2 2s2 3p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2 Quantum numbers n=4 I=2 MI=0 Ms=1/2

ISOTOPES

click here to view all of the isopes that is in zirconium []

FUN FACTS

Zirconium was discovered by Martin Heinrich Klaproth in 1789. It was first isolated in 1824 by Jons Jakob Berzelius by heating a mixture of potassium and potassium zirconium fluoride.

CHEMICAL PROPERTIES This element is resistent to corrison caused by acids and saltwater but it does dissolve in sulfuric acid.

PHYSICAL PROPERTIES This element is not flammable but it will ignate if it is in a powder form.

 Hafnium (Hf)

Hafnium is a lustrous, silvery gray tetravalent transition metal, hafnium chemically resembles zirconium and is found in zirconium minerals.

Atomic # 72

Atomic weight 178.49

Melting point 2233°C

Boiling point 4603°C

Number of electrons 72

Number of protons 72

Number of neutrons 106 

electron configuration1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d2

Quantum numbers N=5 I=0 MI=0 Ms=1/2 ISOTOPES click here to see all of the isotopes for hafnium [] FUN FACTS

Hafnium was discovered by Dirk Coster and Georg Van Hevesy in 1923 in Copenhagen Denmark. Found in zircon through X-ray spectroscope analysis in Norway.

CHEMICAL PROPERTIES This element is resistent to alkalis but reacts with halogens as well. At very hot temps hafnium reacts with oxygen, carbon and boron.

PHYSICAL PROPERTIES This element is a lot like the element Zirconium as in they are both hard to separate. Hafnium absorbs neutrons to form a heavier nucleus.

Rutherfordium (Rf) 

Rutherfordium is a chemical element which can only be produced synthetically. Little is known about this element because ti has only been produced in small volumes and it is difficult to study. This element is metallic and silvery gray in appearance.

Atomic # 104

Atomic weight 261

Melting point: unknown

Boiling point: unknown

Density: unknown

Number of electrons 104

Number of protons 104

number of neutrons 104

electron configuration 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d2 7s2

Quantum numbers N=7 I=0 MI=0 MS= -1/2

ISOTOPES click here for the isotopes []

FUN FACTS Credit for the discovery of this element is actually contentious. Researchers at a lab in Russia led by G.M Flevrov published the discovery of the element in 1964.

CHEMICAL PROPERTIES There really is no chemical properties because the chemist don't really know that much stuff about this element yet. This element is made by man though.

PERIODIC TRENDS In group 4 all of the elements are metals and they are all shiny. They are also all used in cars and trucks. They all are magnets but some are more attractive than others. 

Sources: [] [] [] http://periodic.lanl.gov/elements/72.html [] [] [] [] www.google images.com