Across
- 3. bond: a chemical bond that forms when a metal gives one or more of its
- 6. substances.
- 8. Polyatomic Ion: a charged group of atoms made up of more than one atom. These
- 10. non-metals usually gain or share electrons when they form chemical
- 13. Compound: a substance made from two or more elements that are chemically
- 14. the energy level, the closer it is to the center of the atom (the nucleus).
- 16. Rule: atoms like to have a full set of electrons in their outer energy level, which
- 18. Chemical formula: a simple way to show how many of each element are in a
- 20. metals usually lose electrons when they form chemical bonds.
- 22. take part in ionic bonding.
- 24. atom.
- 25. the smallest part of a covalent or molecular compound. For example, H2O
- 27. Covalent bond: a bond that forms when two non-metal atoms share electrons.
Down
- 1. to a non-metal. This bond happens between a metal cation and a 6. Chemical reaction: this is a process where atoms are rearranged to make new or
- 2. Chemical bonds: these are connections that form when two or more atoms share or
- 4. They are important for chemical bonding, and it takes energy to remove
- 5. Composition: this tells us what elements are in a compound and how many of each
- 7. usually eight electrons.
- 8. Energy Level: these are specific areas where electrons are likely to be found. The
- 9. Ion: an atom that has either gained or lost electrons, which gives it a charge.
- 11. more electrons.
- 12. there are.
- 15. Atom: the smallest part of an element that still has the properties of that element.
- 16. Anion: a type of ion that has a negative charge. It happens when an atom gains one
- 17. For example, H2O means there are two hydrogen atoms and one
- 19. a molecule.
- 21. Cation: a type of ion that has a positive charge. It happens when an atom loses one
- 23. electrons.
- 25. electrons: these are the electrons found in the outermost energy level of an
- 26. more electrons.