Types of Radiation
The 3 types of radioactive decay
Alpha, Beta, Gamma
23191Pa → ____ + 22789Ac
42He
(True or false) C-13 and C-14 are isotopes of one another.
True
The weakest type of radioactive decay
Alpha
The atomic number tells us
The number of protons
This symbol represents 0-1e
beta particle
21084Po → 42 He + ____
20682Pb
Discovered the electron
J.J. Thomson
The strongest type of radioactive decay
Gamma
Mass number is calculated how?
Protons + Neutrons
Alpha decay releases
2 protons and 2 neutrons
____ → 0-1 e + 21484 Po + 00 ɣ
21483 Bi
This experiment was used by Rutherford
Gold Foil
Alpha decay can be stopped by
*Several possible answers* Paper, skin, clothing
This number is always above the symbol on the P.T.
Atomic #
Gamma radiation emmits...
Just energy, no particles
Write a nuclear equation of 23191 Pa if it underwent alpha decay 2 times.
23191 Pa --> 42 He + 42 He + 22387 Fr (or)
23191 Pa --> 42 He + 22789Ac --> 42 He + 22387 Fr (or)
23191 Pa --> 2 (42 He) + 22387 Fr
(True or False) 6329 Cu and Cu-63 give the same information
False
Beta Decay can be stopped by
Heavy clothes, aluminum, wood
Which is found on the periodic table:
Mass Number
or
Atomic Mass
Atomic Mass
Beta-Decay occurs when
A neutron turns into a proton and shoots out an electron
Write a nuclear equation of 19885 At if it underwent beta decay 3 times.
19885 At --> 0-1 e + 0-1 e + 0-1 e + 19888 Ra (or)
19885At --> 0-1 e + 19886Rn --> 0-1 e + 19887Fr --> 0-1 e + 19888Ra
19885 At --> 3 (0-1 e) + 19888 Ra
Where does radiation come from?
Unstable nuclei that break down to become stable
*Or something similar
Gamma radiation can be stopped by
Several inches of lead or several feet of concrete
Where do protons, neutrons, and electrons go in the atom
Protons and neutrons - nucleus
Electrons - Shells (or electron cloud)