Across
- 4. A component of the atom which has a negative electrical charge.
- 5. What makes up every element in the periodic table and are also fully indestructible.
- 6. The scientist who discovered how atomic masses could organize the elements of the periodic table.
- 8. What the electrons are able to produce or emit through situations which end up causing it to lose energy. This process may happen in a lightbulb for example.
- 9. What happens when outmost electrons assume similar properties.
- 11. A component of the atom which has a positive electrical charge.
Down
- 1. The important theory which physicists understand as a phenomena which happens at the microscopic scale in particles.
- 2. What Mendeleev was forced to leave on the periodic table in order for all the discovered elements to line up properly.
- 3. The Russian scientist to put the periodic table together in the first place according to all the elements' similar chemical properties.
- 7. The number of elements it takes for the periodic table to show many similar properties.
- 10. These are formed if atoms which are joined by two or more atoms join together.
- 12. Groups which a German scientist realized elements could be grouped in the periodic table based off of their similar properties.