NOVA:HUNTING THE ELEMENTS QUESTIONS AND ANSWERS. Buy Quality
Materials
What is the number of subatomic particles in gold?
protons/electrons - 79
neutrons - 118
Give one property of gold.
doesn't rust or tarnish
How much gold is in one ton of the mined rock?
one ounce
What determines how reactive an element is?
how willing it is to share electrons
Why is gold so heavy?
it is dense
What is the number of subatomic particles in copper?
protons/electrons - 29
neutrons - 35
List three uses of copper.
pennies, infrastructure, electronics, plumbing
Give one property of copper.
conducts electricity
What alloy does tin make when mixed with copper?
bronze
How are atoms arranged in pure metals?
orderly rows and columns
How much would you have to zoom in on a map of the United States to replicate
the power of an electron microscope?
100,000,000
Why is the microscope wrapped in acoustic blankets?
absorb and reflect sound
What part of the atom is actually visible under the microscope?
the outermost boundaries of an atom
What do protons determine about an element?
the name of the element
What is the number of protons called?
atomic # (number)
Give an example of a real life object made from calcium.
bone
Give an example of a real life object made from bismuth.
stomach medicine
Give an example of a real life object made from bromine.
soda
What is a family of elements?
elements of similar properties
Where did the noble gases get their name?
don't like to react to other elements
Materials
What is the number of subatomic particles in gold?
protons/electrons - 79
neutrons - 118
Give one property of gold.
doesn't rust or tarnish
How much gold is in one ton of the mined rock?
one ounce
What determines how reactive an element is?
how willing it is to share electrons
Why is gold so heavy?
it is dense
What is the number of subatomic particles in copper?
protons/electrons - 29
neutrons - 35
List three uses of copper.
pennies, infrastructure, electronics, plumbing
Give one property of copper.
conducts electricity
What alloy does tin make when mixed with copper?
bronze
How are atoms arranged in pure metals?
orderly rows and columns
How much would you have to zoom in on a map of the United States to replicate
the power of an electron microscope?
100,000,000
Why is the microscope wrapped in acoustic blankets?
absorb and reflect sound
What part of the atom is actually visible under the microscope?
the outermost boundaries of an atom
What do protons determine about an element?
the name of the element
What is the number of protons called?
atomic # (number)
Give an example of a real life object made from calcium.
bone
Give an example of a real life object made from bismuth.
stomach medicine
Give an example of a real life object made from bromine.
soda
What is a family of elements?
elements of similar properties
Where did the noble gases get their name?
don't like to react to other elements
