What's the world's most precious metal? Take the quiz.

CORRECT ANSWERS: 0

Ever want to know just how valuable gold is? What about platinum? Take our valuable metals quiz to see which metals is considered the most valuable.

start quiz

Question 1 of 20

What metal has the best electrical and thermal conductivity?

lead
silver
platinum
ruthenium

... Silver, in its purest form, has the best electrical and thermal conductivity of all the metals.

next

Question 2 of 20

Who built coffins out of gold?

ancient Romans
ancient Greeks
ancient Egyptians
ancient Dahlonegans

... Ancient Egyptians used gold in many cultural items, including burying nobility in gold coffins.

next

Question 3 of 20

Who discovered palladium?

Marie Curie
Albert Einstein
John Cooper
William Hyde Wollaston

... William Hyde Wollaston discovered palladium in 1803.

next

Question 4 of 20

Where does most rhodium come from?

Spain
England
South Africa
India

... About 60 percent of the world's rhodium supply came from South Africa in 2009.

next

Question 5 of 20

Which metal has the third-highest melting point?

gold
rhenium
silver
osmium

... Rhenium can withstand blistering conditions since it has the third-highest melting point among metals.

next

Question 6 of 20

Where did almost half of the world's palladium come from in 2009?

Russia
Saudi Arabia
Norway
Ethiopia

... Almost half of the world's palladium came from Russia in 2009, followed by South Africa, the United States and Canada.

next

Question 7 of 20

What's the unit of weight used to measure precious metals?

kilogram
pound
troy ounce
ingot

... The unit of measurement known as a troy ounce is commonly used for precious metals. One troy ounce is equivalent to 31.1 grams.

next

Question 8 of 20

Who discovered osmium and iridium?

Benjamin Franklin
Neil Tennant
Smithson Tennant
Harriet Smithson

... Smithson Tennant discovered both osmium and iridium in 1803.

next

Question 9 of 20

Which of the following countries was NOT one of the largest miners of gold in 2009?

South Africa
United States
Australia
Brazil

... The largest miners of gold in 2009 included South Africa, the United States, Australia and China.

next

Question 10 of 20

When was rhenium discovered?

1925
1850
1877
1911

... Rhenium, a silvery metal and by-product of molybdenum, was discovered in 1925.

next

Question 11 of 20

Silver can NOT be used to:

stop the spread of bacteria in cell phone covers
control odor in shoes and clothes
make food taste better
prevent mold in treated wood

... Beyond conventional uses, silver may surprise you in the fact that it can help prevent the spread of bacteria, stop mold from growing and control body odor.

next

Question 12 of 20

Platinum is NOT found in which country?

South Africa
Syria
Russia
Canada

... Platinum is found in a variety of countries, especially in South Africa, Russia and Canada.

next

Question 13 of 20

What event triggered the first, large-scale usage of indium?

World War I
World War II
Vietnam War
Korean War

... Indium was used on a widespread basis for the first time during World War II, as a coating for bearings in aircraft engines.

next

Question 14 of 20

Which of the following is used to create white gold?

plutonium
osmium
pyrite
palladium

... Jewelers use palladium to create white gold alloys.

next

Question 15 of 20

Who discovered ruthenium?

Karl Karlovich Klaus
William Hyde Wollaston
Smithson Tennant
Crawford Long

... Karl Karlovich Klaus discovered ruthenium in 1844.

next

Question 16 of 20

An asteroid believed to have triggered a mass extinction on Earth displaced huge amounts of what rare metal?

copper
iridium
gold
rhodium

... Iridium is an extremely rare metal, yet large amounts of it have been found along the K-T boundary -- referring to Earth's giant extinction event.

next

Question 17 of 20

What's one of the most widely used metals?

tin
gold
iron
copper

... Though perhaps not as beautiful as the precious metals, iron is one of the most widely used metals in the entire world.

next

Question 18 of 20

Which country is NOT a large producer of indium?

Italy
China
South Korea
Japan

... China, South Korea and Japan are some of the largest producers of indium in the world.

next

Question 19 of 20

At what temperature will ruthenium eventually begin to degrade?

1,472 degrees Fahrenheit (800 degrees Celsius)
932 degrees Fahrenheit (500 degrees Celsius)
320 degrees Fahrenheit (160 degrees Celsius)
185 degrees Fahrenheit (85 degrees Celsius)

... Ruthenium is able to withstand many external factors, to a point. At around 1,472 degrees Fahrenheit (800 degrees Celsius), the metal will eventually begin to break down.

next

Question 20 of 20

What are the two densest elements?

germanium and osmium
copper and germanium
iridium and copper
osmium and iridium

... Osmium and iridium are the two densest metals known to man.

results

More Curiosity

The 10 Most Amazing Places on Earth

The 10 Most Amazing Places on Earth

When you're surrounded by cubicles and concrete, it's easy to forget that we live on a planet packed full of breathtaking natural beauty, so take a trip with us as we explore 10 of the very best the Earth has to offer.

Top 10 Memorable TV Moments Ever

Top 10 Memorable TV Moments Ever

From The Beatles on The Ed Sullivan Show to the latest breaking news, TV makes more memories than there are viewers. Here are 10 of the most talked-about broadcasts in television history.

ADVERTISEMENT