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What type of energy is released when an unstable nucleus undergoes fission?
Gamma
produces a larger atomic number
fusion
produces radioactive waste
fission
Releases more energy than the other
fusion
Takes place inside the sun.
fusion
Most of the world's electricity is made using fossil fuels as an energy source. In what way is nuclear fission a better alternative to fossil fuels?
Less pollution,
What is the name of the process in which two small nuclei are joined to produce one larger nucleus and lots of enregy?
fusion
produces a nucleus with a smaller mass number
alpha
can be stopped by a sheet of paper
alpha
made of high energy waves
gamma
created when a neutron breaks into a proton and an electron:proton stays in nucleus
beta
Made up of 2 protons and 2 neutrons
alpha
Must be stopped by thick concrete or lead
gamma
logically correct
valid
hypothetical explanation of a natural phenomenon
theory
special method or way of doing something
technique
relative speed of progress or change
rate
measurable event, characteristic or behavior commonly thought to reflect a concept
indicator
make clear the differences between two or more concepts or items
distinguish
to take a stand in support of something
defend
rules by which something is judged
criteria
summary based on evidence or facts
conclusion
logically connected; making sense
coherent
Atom A has 4P + 5N. Atom B has 5P+5N. Are they isotopes? Explain.
No- no the same element
What parts of the atom are found in the nucleus?
Protons + Neutrons
A Carbon, atom #6 on the periodic table has a mass of 13. How many neutrons?
7
this part of the atom is the smallest; its mass # is 0.
electron
the part of the atom that has a negative charge
electron
In Ne-21, what does the 21 mean?
mass#/ P+N
When drawing a Bohr model, this is the number of electrons on the first ring.
2
An atom has 8 protons, 9 neutrons, and 10 electrons. What is its mass?
17
Mg-26 is number 12 on the periodic table. How many neutrons does it have?
14
identify the atom that has 17P and 18N
chlorine
the parts of the atom that make up the mass number
protons + neutrons
the charge of the neutron
zero
in a neutral atom, the number of protons equals the number of what?
electrons
the one part of the atom that is always the same as the atomic number
proton
the part of the atom that orbits around the nucleus
electron
The part of the atom that has a positive charge
proton
What is the same in an isotope?
proton
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