Tin

__﻿Tin__

1. Name of the element and how it got its name? Tin its alloys,and its compounds have been to humans for thousands of years. A. Who discovered it? known to the ancients

B. when was it discovered? unknown

2. Symbol,Atomic number,and atomic mass: Sn,50,118.71 amu A. source of the symbol : From the latin word stannum(tin)

3. Number of protons,neutrons,and electrons﻿? P=50 E=50 N=69

4. Where it is found and in what from(state of matter-soild liquid,gas)? Tin is found mainly in the ore cassiterite,which is found in malayia,bolivia,indonesia,thailand and nigeeia.It obtained commercially by reduing...

5. Physical facts:obtained from ore cassiterite A .Melting points :231.9 c

B. Boiling point :2270.0 c

C. Density: 7.31g/cm^3

D. Abundance in the earths(crust includes air,water,and land): Crust:o.2mg/kg=0.00002% Ocean water:0.00024mg/L

6. Uses(how is he element used)? coating for steel cans

7. interesting facts :color is white

8. Sources(i would expect 3 to be a mimimal number): A.www.mrteverett.com/chemistry/pdictable/elements.asp?

B.www.chemicalelement.php

C.www.cheicalaid.com/elements .php