Across
- 2. Particle in the nucleus with a positive electric charge.
- 4. it is the same as the atomic number in a periodic table - only in a neurally charged element. It is located in the cloud "shells". It has negative charge -1. It weights nothing compared to neutrons/protons
- 6. total number of protons in an atom. It indicates where the atom is located within the periodic table and also its properties.
- 8. brittle, soft, dull, not solid in room temperature, poor conductor of heat/electricity
- 9. houses the protons and neutrons. It is the centre of the atom and contains most of its mass.
- 11. highly reactive, lustrous, reacts with water
Down
- 1. It is the smallest particle of a matter that still holds the element's properties.
- 3. particle in the nucleus with a neutral charge.
- 5. the number underneath the atom symbol in the periodic table. It represents the weight of the atom. It is calculated by the total number of protons plus the total number of neutrons.
- 7. blend/mixed of properties of metals and non-metals
- 10. ductility, lusture, conductivity, hardness