Atomic Theory

3. He proposed that electron moved around the nucleus in energy levels (shells), but no electrons between the energy level (think ladder)
4. Small negatively charged particles that orbit around an atom's positively charged nucleus.
7. It is a bond wherein electrons are shared equally.
8. He was a central figure in the development of the atomic theory of the universe.
11. Particles located inside the nucleus with a similar mass to their partner proton but with no electrical charge.
13. Shows how specific atoms are ordered and arranged in compounds.
14. He discovered that an atom contains a nucleus with positively charged particles and that the electrons must be "floating" around the nucleus

1. Are composed of atoms chemically bonded by attractive forces.
2. A smaller bit of positively charged matter or sub-atomic particle within the nucleus.
5. Gives the exact number of atoms o each element in a molecule.
6. Negatively charged on naming ionic compounds
9. Are atoms that loss or gain electrons.
10. He proposed that all matter is composed of extremely small particles called atoms
12. Positively charged on naming ionic compounds