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Science 9 - Chapter 10 Final Review
Terms in this set (11)
Radioactive materials have what type of nuclei?
After the nucleus of a radioactive element undergoes changes what happens?
The element can transform into a different isotope of the same element
Are Alpha particles positively or negatively charged?
What type of nuclear radiation that can penetrate farthest through matter is called?
What happens in alpha decay?
The mass number of the atom before the decay equals the sum of the mass number of particles
Alpha particles are nuclei of what ?
nuclei of helium
In radioactive decay, with each successive half-life what happens?
Half the remaining samples decays to element
Nuclei with too many or too few neutrons are what?
What is Fusion?
Occurs when nuclei combine
The opposite reaction to fusion is called ?
Background radiation can come from what?
Sun, plants, water
Recommended textbook explanations
Physical Science Concepts In Action
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Chemistry: The Central Science
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Outline the sequence of events that occur when a firearm is discharged and a projectile is expelled. Include the following terms: gunpowder, primer powder, hammer, trigger, firing pin, and bullet.
If 6.00 mol argon in a 100-L vessel initially at 300 K is compressed adiabatic ally (q = 0) and irrevers ibly until a final temperat ure of 450 K is reac hed, calculate the energy change of the gas, the heat added to the gas, and the work done on the gas.
Is it possible for an object's weight to change while its mass remains constant? Explain.