Across
- 2. A stable particle with positive charge.
- 4. The smallest component of an element.
- 5. An elementary particle with negative charge.
- 9. ray Glowing beam of electrons that passes from a cathode to an anode within a vacuum tube
Down
- 1. theory Theory that all matter is made up of tiny indivisible particles.
- 3. A subatomic particle with zero charge.
- 6. A part of the cell responsible for growth and reproduction.
- 7. number The number of neutrons in an atom is the difference between the mass number and atomic number for that atom.
- 8. table is an arrangement of elements in which the elements are separated into groups based on a set of repeating properties.