Across
- 3. "Makes up most of the air we breathe, but we can't use it directly."
- 7. A slow chemical reaction between iron, water, and oxygen.
- 10. A negatively charged particle that moves around the nucleus.
- 11. A chemical reaction in which a substance burns in oxygen to release heat.
- 13. An energy level where electrons revolve around the nucleus in an atom.
- 16. The mixing of atomic orbitals to form new orbitals for bonding.
- 19. A combination of two or more substances that do not chemically combine.
- 21. The process of forming solid crystals from a solution.
- 23. Relationship Similarity between certain elements diagonally placed in the periodic table, like lithium and magnesium.
- 24. A pure substance made up of only one type of atom.
- 26. The process in which a single ligand forms multiple bonds with a central metal ion.
- 27. The chemical decomposition of a substance by passing electric current through it.
- 28. A substance with a sour taste and pH less than 7; turns blue litmus red.
- 29. A unit of concentration defined as moles of solute per liter of solution.
Down
- 1. Tendency of an atom to attract a shared electron pair in a chemical bond.
- 2. A phenomenon where a compound exists in two forms by the shifting of a hydrogen atom and a double bond.
- 4. A neutral particle found in the nucleus of an atom.
- 5. The smallest unit of matter that retains the properties of an element.
- 6. Mass per unit volume; determines how heavy something is for its size.
- 8. The existence of an element in more than one physical form in the same state (like diamond )
- 9. The amount of space an object or substance occupies.
- 12. A fixed circular path in Bohr’s model where electrons revolve around the nucleus.
- 14. Affinity The energy change when an atom gains an electron to form a negative ion.
- 15. Regions in an atom where there is a high probability of finding electrons.
- 17. moment Moment A measure of the separation of positive and negative charges in a molecule; usually shown in Debye.
- 18. Unequal sharing of electrons in a molecule causes this type of charge separation.
- 20. A state in a chemical reaction where forward and reverse reactions occur at the same rate.
- 22. A mixture of two or more metals, or a metal and a non-metal.
- 25. Two or more atoms bonded together.
- 26. A solid substance with a regular and repeating arrangement of particles.