Final Chem part 3 Word Scramble
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Question | Answer |
Radiation deflected toward the positively charged plate | Beta radiation |
Atoms with the same number of protons but different numbers of neutrons | isotopes |
high energy radiation that has no change and no mass | gamma ray |
The smallest particle of an element that retains the properties of that element | atom |
the weighted average mass of an element's isotopes | atom mass |
the center-most part of an atom where the protons and neutrons are contained | nucleus |
Radiation deflected toward the negativley charged plate | Alpha radiation |
The rays and particles emitted by radioactive material | radioactive |
Equal to 1/12 the mass of a carbon-12 atom | atomic mass unit |
Ray of radiation traveling from the cathode to the anode | cathode ray |
Process 9not requiring energy) by which unstable nuclei lose energy | radioactive decay |
states that all matter is composed of atoms | Dalton's atomic theory |
process whereby some substances spontaneously emit radiation | radioactivity |
Compare and contrast Mass & atomic number | atomic number is the number of protons and electrons in an element & mass number is the number of protons & neutrons |
Compare and Contrast nuclear reaction & nuclear equation | A nuclear reaction is a reaction that changes the nucleus & a nuclear equation is an equation that determines the mass of an atom |
true or false~an atom's nucleus contains its protons and electrons | False |
true or false~Neutrons have no electrical charge | True |
true or false~beta particles have a charge of +2 | False |
true or false~An alpha particle consists of two protons and two electrons | False |
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