Transition Metals

- There is only one liquid transition metal at room temperature. It is Mercury (Hg). All the others elements in the transition metals are solid.

- The transition metals are the subgroups between groups IIA and III A.

- The transition metals are classified differently due to the filling of their d sub shell orbital.

- All transition metals are metallic and have high electrical conductivity.

- They are called "transition metals" because they are metallic elements that serve as a bridge, or transition, between the two sides of the periodic table.

-Transition metals are the only elements that can produce a magnetic field.


Name: Osmium

Symbol: Os

Atomic Number: 76

Melting Point (M.P.): 3045.0 o C

Boiling Point (B.P.): 5027.0 0C

Number of Protons/ Electrons: 76

Number of Neutrons: 114

Crystal Structure: Hexagonal

Color: Silver

Date of Discovery: 1803

Discoverer: Smithson Tenant

Name Origin: From the Greek word osm (odor)

Uses: tip gold pen points, instrument pivots, electrical light filaments

Obtained From: ores that contain platinum


Name: Iridium

Symbol: Ir

Atomic Number: 77

M.P.: 3045.0oC

B.P.: 5027.0oC

Number of Protons/Electrons: 77

Number of Neutrons: 115

Crystal Structure: Cubic

Color: White


Name: Platinum

Symbol: Pt

Atomic Number: 78

M.P.:1772.0o C


Number of Protons/Electrons: 78

Number of Neutrons: 117

Crystal Structure: Cubic

Color: Silverish

Date of Discovery: 1735

Discoverer: Julius Scaliger

Name origin: From the Spanish word platina (little silver)

Uses: jewelry, containers, catalyst

Obtained From: platinum ores


Name: Gold

Symbol: Au

Atomic Number: 79

M.P.: 1064.43oC

B.P.: 2807.0oC

Number of Protons/Electrons: 79

Number of Neutrons: 11

Crustal Structure: Cubic

Color: Gold

Date of Discovery: circa 3000 B.C.

Discoverer: Unknown

Name Origin: From the Old English word geolo (yellow)

Symbol Origin: From the Latin word aurum (gold)

Uses: electronics, jewelry, coins

Obtained From: crust of the earth, copper ores


Name: Mercury

Symbol: Hg

Atomic Number: 80

M.P.: -38,87 0 C

B.P.: 356.58 0C

Number of Protons/ Electrons:80

Number of Neutrons: 121

Crystal Structure: Rhombohedral

Color: Silver

Date of Discovery: Known to the Ancients

Discoverer: Unknown

Name Origin: After the planet Mercury

Symbol Origin: From the Latin word hydrargyrum (liquid silver)

Uses: thermometers, barometers, fluorescent lamps, batteries

Obtained From: cinnabar ore


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