<Tin>

Symbol: Sn

History:

Tin is known to be one of the earliest metals.

 In the past it has been used as a component

of bronze as early as 3,500  BC. Tin mining

 began in the early classical times although,

 it was not formally used until around 600 BC.

Electrons: 50

Neutrons: 69

Protons: 50

Atomic Number: 50

Mass Number: 118.69

Boiling Point:

2875 K
(2602 °C, 4716 °F)

Melting Point:

505.08 K
(231.93 °C, 449.47 °F)

Freezing Point:

505.21K 232.06°C 449.71°F

Density:

(white) 7.265 g·cm⁻³

(gray) 5.769 g·cm⁻³

Electronegativity:

1.96 (Pauling scale)