Show:
Gold 1
Gold 2
Silver 1
Silver 2
100
What is the origin of the name for gold?
Gold is an Anglo-Saxon word and is believed to have come from the Sanskrit 'jval' meaning to shine
100
What is the symbol for gold and what is the origin of the symbol?
Au; the latin word for gold is "aurum"
100
What is the symbol for silver, and what does it originate from?
The symbol is Ag, it originates from the latin word Argentum, which means "white and shining"
100
How reactive is silver?
It reacts poorly
200
Name 3 properties of gold.
Answers can include, yellow, soft, conducts heat, conducts electricity, resistant to corrosion, ductile, malleable, and very dense
200
Why is gold a transition metal?
Gold is a conductor of electricity, hard and shiny, fairly stable
200
True or False, silver is the best conductor of electricity and heat of all metals.
true
200
Why is silver a transition metal?
It does not oxidize readily when heated, does not dissolve in most mineral acids
300
When was gold discovered?
Trick Question! No one knows because gold was discovered before there was no written records. Although there is a good chance it was discovered in a river.
300
Name 2 uses of gold in our everyday lives.
Answers can include jewelry/coins, dental work (crowns), gold plating for decoration, gold thread in embroidery work, microelectronic circuits, some gourment food and drinks, treating some forms of cancer, and some photography, financial benefits
300
Why did the Ancient Egyptians value silver more than gold?
The Ancient Egyptians didn't know how to extract silver from other ores, and pure gold was more common than pure silver.
300
How is silver used in photographic film?
Silver halides are sensitive to light, so it is used to make developing solutions. (thats why the old cameras took a while to develop)
400
Name one of the main uses of gold in ancient times.
currency, jewelry
400
What is the atomic number and atomic mass of gold?
atomic number: 79; atomic mass: 196.9665
400
In Sterling Silver, what is the percentage of pure silver compared to other metals like copper?
92.5%
400
What is the atomic mass for silver, and how many electrons does the silver atom have?
Atomic mass of 107.87 and 47 electrons
500
Name one use of gold in outer space.
Answers can include satellites and astronauts's visors(gold blocks out harmful solar radiation)
500
Where and in what form is gold found on earth? How do scientists isolate or purify it?
Gold is found underground and in rivers. Gold is usually found as a metal alloyed with silver or as a mixture with mercury. Gold is purified by heating up in a process known as smelting.
500
Why would drugs that contain silver be useful to medicine?
Silver is remarkably permeable to oxygen, so silver is poisonous to bacteria that rely on oxygen-rich environments such as blood.
500
What is the name of the final refining stage of silver that uses electricity to purify silver?
Electrolysis