Across
- 4. Part of an atom, amount varies slightly between atoms
- 5. Atoms sharing electrons
- 8. The different neutron amount varieties of an atom
- 12. The smallest amount of a substance that still retains its properties
- 13. A part of an atom, negatively charged
- 15. An electron in the outer shell that makes chemical bonds between atoms
- 16. Anything that occupies space or has mass
Down
- 1. Part of an atom, positively charged
- 2. The man who designed the periodic table
- 3. Atoms that have lost or gained electrons
- 6. Positive ions and negative ions attract and bond.
- 7. The simplest particle of an element
- 9. Center of the atom
- 10. A combination of elements
- 11. A pure substance that cant be broken down further
- 14. A table showing all of the elements, arranged in a way that gives information about each element