Solve these clues to fill the grid.
- An elementary particle with negative charge
- 4 Across
- A unit of magnetic field strength equal to one-hundred-thousandth of an oersted
- 6 Across
- A stable particle with positive charge equal to the negative charge of an electron (plural)
- 8 Across
- A silvery ductile metallic element found primarily in bauxite
- 10 Across
- To take up mentally
- 12 Across
- The time required for something to fall to ___ its initial value
- 15 Across
- The 1st letter of the Greek ___
- 16 Across
- Center of an atom or a cell
- 1 Down
- An impetuous rush toward someone or something
- 2 Down
- A very light colorless element that is one of the six inert gasses
- 3 Down
- An elementary particle with 0 charge and mass about equal to a proton (plural)
- 5 Down
- A mixture of gases required for breathing
- 7 Down
- Energy that travels in waves or particles
- 9 Down
- A particle that is electrically charged
- 11 Down
- The 2nd letter of the Greek alphabet
- 13 Down
- A material made of cellulose pulp derived mainly from wood or rags or certain grasses
- 14 Down