Across
- 2. When a pair of electrons is shared between two atoms to follow the octet rule.
- 5. The temperature at which a given solid will melt.
- 8. A set of chemical symbols showing the elements present in a compound and their relative properties
- 10. Positively charged ions
- 11. A starting substance in a chemical reaction
- 16. An equation in which each side has the same number of atoms of each element
- 17. Two or more substances combine to form a single substance
- 21. Two compounds exchange ions and form two new compounds.
- 23. A charged chemical species composed of two or more atoms covalently bonded
- 24. A liquid or gel that contains ions that can be decomposed by electrolysis
- 25. A reaction in which oxygen reacts with another substance, often producing carbon dioxide and water
- 26. The symbol aq indicates a substance is dissolved in….
- 27. In the Modern Model of the atom, each energy level is divided into smaller sublevels orbitals.
- 28. Solution is water
Down
- 1. A single compound breaks down into 2 or more simpler substances
- 3. Matter cannot be created or destroyed, it can only be changed.
- 4. A representation of a chemical reaction
- 6. A new substance formed in a chemical reaction
- 7. Two protons and two neutrons
- 9. A whole number that appears before a formula in an equation
- 12. Process of splitting a nucleus into two nuclei with smaller masses.
- 13. Outer shell electron associated with an atom
- 14. Negatively charged ions
- 15. Combine two light nuclei to make an atom with a heavier nucleus
- 16. High-speed electron that is emitted.
- 17. Formulas indicating that the chemicals were involved in the same equation
- 18. A group of atoms bonded together
- 19. Atoms or groups of atoms with a charge
- 20. Atoms give away or accept electrons from one another to follow the Octet Rule.
- 22. When the valence energy of an atom contains 8 electrons