History of the Atom
Structure of the Atom
I...might know the answer!
Particles and Energy
Scarily Useful
Throwbacks
100
This fellow is known for his plum pudding model and affinity for vacuum tubes and small, negative subatomic particles.
Thomson
100
The area where most of the volume of an atom is located.
Electron cloud
100
How many protons are in this atom?
1 proton
100
Which type of radiation has no mass and takes up no space?
Gamma radiation
100
This type of nuclear reaction is great because it powers stars and its product is helium!
Fusion
100
3.2 mL = ____ cm3?
3.2 cm3
200
This fellow thought that the electrons orbited the nucleus like the planets orbit the sun.
Bohr
200
The space where most of the mass of an atom is located.
The nucleus.
200
How many electrons are in this atom?
2 electrons
200
What is the name of the force that holds the protons and neutrons together in the nucleus.
Strong nuclear force
200
This isotope is commonly used as a gamma radiation source in medicine.
Cobalt-60
200
3.75 + 100 = ?
104
300
This guy was very principled - he determined that you could never know exactly where an electron was located at any given point in time.
Heisenburg
300
This subatomic particle has a relative atomic mass of 1/1836 amu.
The electron.
300
A neutral atom has 6 electrons and 8 neutrons. What element is it?
Carbon! (6 protons)
300
The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?
12.5 g
300
What are two advantages and two disadvantages to using fission to produce electricity for our homes?
Answers will vary.
300
A chef needs a pan that heats up quickly. He has two options for materials: aluminum (c = 0.89 J/gC) and silver (c = 0.237 J/gC). Which material would heat up the quickest?
Silver
400
These guys all thought the atom was indivisible...whoopsie! (Name at least two...double points if you can name all 5!)
Democritus, Dalton, Lavoisier, Proust, and Thomson
400
The ratio of these two subatomic particles determine whether or not the nucleus of the atom will be stable.
Protons and neutrons
400
An ion with a charge of -2 has 6 electrons...what element is it?
Beryllium (4 protons)
400
A man decides to wear an aluminum hat because he is afraid of radiation poisoning. What types of radiation is he protected from?
Alpha particles and beta particles
400
What do fission and burning fossil fuels to produce power have in common?
They both boil water to create steam which turns a turbine to generate electricity.
400
3.2 dm3 = ____ mm3?
3200000 mm3
500
Dalton would have thought the chemical formula C12O45 was complete garbage because of what law?
The law of multiple proportions.
500
What does the decimal number at the bottom of each periodic table square represent?
The average atomic mass - a weighted average of all of the known isotopes of an element that take into account their percent abundance.
500
How many neutrons in this isotope?
8 neutrons
500
What type of decay has occurred if Iron-56 decays into Cobalt-56 and a particle is released?
Beta decay
500
Why can fission produce a chain reaction? And, how do nuclear engineers control the fission inside a nuclear reactor?
With each fission, 2-3 neutrons are produced that can then cause fission of 2-3 more large nuclei.
Nuclear engineers use control rods to absorb excess neutrons.
500
What's the density of liquid water?
1.0 g/mL