Properties of Matter for Select Elements

By Sarah Guo



FAMILIAR OBJECTS!

Silver
a) density- 10500 kgm^-3
meltng/freezing point- 961.78 degrees

b) Silver was used to make jewelry and thimbles. Silver can also make batteries and lab equipment parts.

c)

d) Silver was once used to make camera film!



Gold

a) density- 19281 kgm^-3
melting/freezing point- 1064.18 degrees C

b) Gold is used for jewelry making. People also use gold to make weapons, like swords and daggers.

c)

d) Gold is non-toxic!


Platinum

a) density- 21450 kgm^-3
melting/freezing point- 1768.2 degrees C

b) Platinum is used in emission control catalysts in automobiles. Platinum bands on rings are very popular.

c)

d) The name platinum derives from the Spanish word platina, which means little silver.



UNFAMILIAR ELEMENTS!



Iridium

a) density- 22550 kgm^-3
melting/freezing point- 2466 degrees C

b) Iridium forms an alloy with osmium which is used for pen tips. That alloy also creates compass bearings.

c)

d) The name iridium comes from the word iridescent.



Palladium

a) density- 11995 kgm^-3
melting/freezing point- 1554.8 degrees Celcius

b) Finely divided palladium is a good catalyst and is used for hydrogenation and dehydrogenation reactions. It is also used as a stiffener in bridgework.

c)

d) Palladium was discovered in 1803 by W. H. Wollaston.



Yttrium

a) density- 4475 kgm^-3
melting/freezing point- 1522 degrees C

b) Yttrium is used in television screens to produce the color red. It also has a medical use in needles.

c)

d) Yttrium is named after Ytterby, Sweden.




LEAST TO GREATEST DENSITY LIST

1. Iridium (22550 kgm^-3)
2. Platinum (21450 kgm^-3)
3. Gold (19281 kgm^-3)
4. Palladium (11995 kgm^-3)
5. Silver (10500 kgm^-3)
6. Yttrium (4475 kgm^-3)




LOWEST TO HIGHEST MELTING POINT LIST

1. Silver (961.78 degrees C)
2. Gold (1064.18 degrees C)
3. Yttrium (1522 degrees C)
4. Palladium (1554.8 degrees C)
5. Platinum (1768.2 degrees C)
6. Iridium (2466 degrees C)

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