Across
- 3. Can be turned into a wire without breaking
- 5. Number Protons + Neutrons = ________
- 6. Number of atoms in an element.
- 9. Neutrally charged located in the nucleus.
- 13. A group of two or more atoms held together by chemical bonds representing the smallest particle of a pure substance that retains its chemical properties
- 16. Shiny, malleable, reactive elements
- 17. A substance formed by two or more different elements chemically joined in a fixed ratio.
- 20. Stable, Noble gassesUnstable Reactive
- 22. neutron charge
- 23. proton charge
- 24. Non reactive
- 25. Mix of Nonmetals and Metals
- 27. The electrons in the outermost shell of an atom that are involved in chemical bonding
- 28. Number of protons
- 29. Unstable
Down
- 1. Number of molecules
- 2. Charge that an atom needs to be stable. (gain or lose)
- 4. A mix of elements that keep their properties and can be physically separated. (saltwater)
- 7. A single type of matter made up of only one kind of particle
- 8. Creator of Periodic Table, organized it by elements weight
- 10. A pure substance made up of only one type of atom
- 11. The basic building block of all matter representing the smallest particle of a pure substance that retains its chemical properties
- 12. Columns # of valence
- 14. Center of an atom, protons and neutrons are there.
- 15. Located in the nucleus of an atom, also the atomic number, positively charged.
- 18. rows # of of circles, energy levels, orbitals
- 19. Can be pounded ( answer: malleable)
- 21. electron charge
- 26. All three states of matter, brittle