2011-04-12 14:50:56 UTC
electrons only
protons plus neutrons
protons only
Question 2 3 points Save
If two atoms are isotopes of the same element, they have the same number of ______ but will have different numbers of _____.
protons; neutrons
neutrons; electrons
neutrons; protons
Question 3 3 points Save
An element has an atomic number of 92 and a mass number of 234. How many neutrons does the element have?
192
142
92
Question 4 3 points Save
The energy released by nuclear fission can be used to ________ and turn a turbine to produce ________ energy.
heat water; chemical
merge atomic nuclei; potential
heat water; mechanical
Question 5 3 points Save
What type of fuel is burned in a nuclear power plant?
fossil fuels such as coal
minerals like uranium
nothing is burned; the plant runs on a chain reaction instead of burning
Question 6 2 points Save
Nuclear fusion is easily used to produce commercial nuclear power.
True
False
Question 7 3 points Save
Radioactive decay takes place when an atomic nucleus spontaneously emits
alpha particles, beta particles, or neutrons
high-energy radiation
both of the above
Question 8 3 points Save
An alpha particle is made up of
two protons and two electrons
two electrons only
two protons and two neutrons
Question 9 3 points Save
Which type of nuclear waste is most dangerous to humans?
Low-level
transuranic
High-level