Write the letter of the matching definition next to each term.
1. Gamma
A. Swiss chemist who synthesized DDT and discovered its use as an insecticide
2. Paper
B. Deriving destructive energy from the release of atomic energy
3. Beta
C. The 1st letter of the Greek ___
4. Aluminium
D. Any of several trees producing edible oval fruit having a smooth skin and a single hard stone
5. Dose
E. A material made of cellulose pulp derived mainly from wood or rags or certain grasses
6. Alpha
F. An attack that ___ into enemy territory
7. Background
G. A person's social heritage: previous experience or training
8. Electrons
H. A measured portion of medicine taken at any one time
9. Radon
I. An intensely radioactive metallic element that occurs in minute amounts in uranium ores
10. Rutherford
J. English chemist and physicist who formulated atomic theory and the law of partial pressures
11. Uranium
K. Energy that travels in waves or particles
12. Dalton
L. The 2nd letter of the Greek alphabet
13. Radium
M. A soft heavy toxic malleable metallic element
14. Rays
N. A unit of magnetic field strength equal to one-hundred-thousandth of an oersted
15. Plum
O. Any of various soft thick unsweetened baked dishes
16. Geiger
P. A hypothetical description of a complex entity or process
17. Radiation
Q. An elementary particle with negative charge (plural)
18. Pudding
R. A heavy toxic silvery-white radioactive metallic element
19. Muller
S. German physicist who developed the ___ counter
20. Penetration
T. A column of light (plural)
21. Nuclear
U. A silvery ductile metallic element found primarily in bauxite
22. Lead
V. A unit strength of a radioactive source equal to one million disintegrations per second
23. Model
W. A radioactive gaseous element formed by the disintegration of radium