Across
- 2. Has positive charge and located in nucleus.
- 4. Sum of the number of proton and neutron.
- 6. State of matter with indefinite shape and volume.
- 7. Same atom with different number of neutron.
- 9. Composed of only one type of atoms.
- 11. Has neutral charge and located in nucleus.
- 12. State of matter with definite shape and volume.
Down
- 1. Top number on the periodic table that represents the number of proton.
- 2. State of matter that is in gas form with high temperature and electricity.
- 3. Composed of more than one element chemically combined.
- 5. Has negative charge and located outside the nucleus.
- 8. Building block of matter
- 10. State of matter with indefinite shape, but definite volume.
- 11. Center of atom that contains proton and neutron.