Redox Nuclear Test Review
Terms in this set (40)
The number of protons and it determines the element
protons + neutrons
atoms of the same element(same Atomic # and protons) with different mass numbers(neutrons)
when one unsatble nucleus spontaneously gives off an alpha or beta particle
when a projectile particle hits a target nucleus and "splits" the atom into several pieces
when two atoms combine together to make a larger atom
the amount of time it takes for half of the mass of a radioactive substance to decay
when one reaction causes the next as in a neutron causing a fission reaction which in turn gives off 3 more neutrons that trigger three more fission reactions
tiny packets of light energy
the different frequencies and energy of light
Electromagnetic Spectrum (low to high)
radio micro infrared visible ultraviolet x-ray gamma cosmic
(low freq& energy)--------------(high freq &energy)
the atomic bomb which is a FISSION bomb like the ones used at the end of WWII
the hydrogen bomb also a FUSION bomb, which is many times more powerful than the A- Bomb
what is the name of radiation that is the most damaging to human cells?
what is the isotopic notation for a neutron?
what is the mass and charge of gamma rays?
0 mass and 0 charge
what is the symbol for the radiation that is most penetrating?
(curly) Y (gamma symbol)
what is a beta particle and where does it come from?
An electron from the nucleus when a neutron decays
the one you start with- nucleus that breaks apart
what you get- the nucleus that is formed from the splitting of the parent nucleus
the process by which materials give off rays and particles
penetrating rays and particles emitted by a radioactive substance
radioisotopes/ radioactive substance
unstable nuclei--->"a radioactive isotope is like your little brother trying to carry too many groceries"
chemical reaction vs. nuclear reactions
- chemical reaction- atoms gain or loose electrons, change their electron configuration
- nuclear reaction- atoms gain or loose electrons, neutrons, or energy; CANNOT BE SPED UP, SLOWED DOWN, OR STOPPED
alpha radiation (x)
-emits a particle that has 2 protons and 2 neutrons
- resembles a helium atom (X)
the sum of the mass numbers (superscripts) on the right MUST equal the sum on the left
beta radiation(long B)
-emits an electron
how? a neutron breaks apart into a proton and electron
the sum of mass and atomic numbers MUST be equal on the left and right
gamma radiation (Y)
release high energy photon(called gamma ray)
Emitting a gamma ray does not change the mass or atomic numbers
notation: ^4 2 He
notation: ^0 -1 e
notation: ^0 0 y
what are the only nuclei that can undergo fission?
uranium and plutonium
who lead the manhattan project?
use controlled fission reactions to produce energy
fuel rods from nuclear power plants are one source of nuclear waste
fusion what it does
the energy released by the sun is a result of fusion
hydrogen bombs based off of a fusion reaction
h-bomb is ten times more powerful than the a- bomb
An unstable nucleus releases energy by emitting radiation during radioactive decay.