ELEMENT GROUP 4

• Titanium
• Zirconium
• Hafnium
• Rutherfordium

MYSTERY ELEMENT

This element looks silvery white, its atomic number is 40, it's weight is 91.224, it's element category is transition metal, it has 5 shells, on the shells their are 2, 8, 18, 10, 2. It is a solid, boiling point is 7911 F, melting point is 3371 F.

Titanium
Titaniums atomic number is 22, atomic weight is 47.88, melting point is 3034 F, boiling point is 5949 F. This element was discovered by William Gregor in 1791.

Zirconium
Zirconiums atomic number is 40, atomic weight is 91.224, it's boiling point is 7911 F, it's melting point is 3371 F. Martin Heinrich Klaproth in 1789.

Hafnium
It's atomic number is 72, it's atomic weight is 178.49, it's boiling point is 8317 F, it's melting point is 4051 F. Discovered by Dirk Coster and George de Hevesy in 1922.

Rutherfordium
It's atomic number is 104, it's atomic weight is 267, it's boiling point is 9900 F, it's melting point is 3800 F. Joint Institute for Nuclear Research in 1964.

TITANIUM

ZIRCONIUM

HAFNIUM

RUTHERFORDIUM