Fun with Chemistry

1. Sum of protons and Neutrons on the periodic table
5. introduced by Niels Bohr and Ernest Rutherford in 1913
6. the action of dividing or splitting something into two or more parts
8. It is used to describe where electrons are when they go around the nucleus of an atom.
10. the basic unit of a chemical element.
11. is an electron orbital.
14. the distance between successive crests of a wave
17. you need this to keep you moving throughout the day
18. each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons
19. Halfway living is refered to as a........
22. Negative charge in an atom
23. kind of radiation including visible light, radio waves, gamma rays, and X-rays
26. number on the top left box on every element on the periodic table
27. Nickelodeon's Brainiac- "Jimmy......."

2. process by which the nucleus of an unstable atom loses energy by emitting radiation,
3. gives the atom or molecule a net positive or negative electrical charge
4. is the distribution of electrons of an atom or molecule.
7. Located in the center of an atom
8. a spectrum of the electromagnetic radiation emitted by a source.
9. the act of something circling around an object.....(add "al" at the end of that word)
12. the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have.
13. The spontaneous transformation of an unstable atomic nucleus into a lighter one
15. Symbolized AMU
16. a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.
20. process or result of joining two or more things together to form a single entity.
21. plural of quantum
24. usually how often something occurs is called the......
25. An Electrons' archnemesis.