Element Properties: 46-52 atomic number

by Izzy X. Product specialist

PALLADIUM, SILVER, CADMIUM, INDIUM, TIN, ANTIMONY, TELLURIUM

Recommended Features

Palladium is a silver, white metal that also occurs as a black powder and as spongy masses that can be compressed to a compact mass.
Silver is a white, precious metal, more malleable and ductile than any other metal except for gold.
Cadmium is a silvery- white metal that is almost as soft as tin. Like tin, it emits a crackling sound when bent.
Indium is about as rare as silver. It is a soft, white metal with bluish tinge. Like tin, it emits a screeching sound when bent.
Tin is silver white, lustrous, soft, very malleable, and ductile metal. It Is slightly tenacious, easily powdered, and comes in the form of bars, foil, powder, shot, etc.

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Review on Element Properties: 46-52 atomic number

ANTIMONY
Atomic symbol: Sb
Atomic weight: 121.760
Atomic number: 51
Electron configuration: 2- 8 -18-18-5
Oxidation states: 3, +5
State of matter: solid
Heavy metal: low melting
Discovered in ancient times
Boils at 1380C, melts at 630.5C
Notes:
Antimony exists in many allotropic forms, such as a bright silvery white metal, which is hard and brittle. It is a poor conductor of electricity and heat and does not tarnish in air unless the air is moist, in which case it slowly oxides. It shows a rare characteristic of expanding when it solidifies, and thus is good for casting and type metals. Combined with either tin, lead, or copper it forms anti-friction alloys that are used in machinery bearings.

TELLURIUM
Atomic symbol: Te
Atomic weight: 127.60
Atomic number: 52
Electron configuration: 2-8-18-18-6
Oxidation states: +4, +6, -2
State of matter: solid
Non-metal
Discovered in 1782 by Franz Joseph Mller von Reichenstein
Boils at 989.9C, melts at 449.8C
Notes:
Tellurium is a semi-metallic element that physically and chemically resembles selenium. Tellurium exists in two forms: a silvery-white brittle, crystalline solid that has a metallic luster, and an amorphous powder that is dark gray to brown. It burns in air and oxygen with a blue- green flame.

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