Across
- 2. Elements in group 18 of the periodic table, generally unreactive due to their stable electron configurations.
- 5. Elements in groups 3-12 on the periodic table, characterized by their variable oxidation states and colorful compounds.
- 7. A measure of the acidity or alkalinity of a solution.
- 8. The process by which a heavy atomic nucleus splits into two or more lighter nuclei.
- 9. A biological catalyst that speeds up chemical reactions in living organisms.
- 10. Bond A type of chemical bond that involves the transfer of electrons from one atom to another.
- 13. A substance that increases the rate of a chemical reaction without undergoing permanent chemical change.
- 14. Repelling, tending not to combine with, or incapable of dissolving in water.
- 15. A large molecule composed of repeating structural units, or monomers.
- 17. Bond A type of chemical bond that involves the sharing of electron pairs between atoms.
- 18. Having an affinity for water, able to dissolve in, mix with, or be wetted by water.
- 20. Two or more atoms chemically bonded together.
- 21. Organic compounds composed solely of hydrogen and carbon atoms.
- 23. A substance that conducts electricity when dissolved in water.
- 25. Compounds with the same molecular formula but different structural arrangements.
- 27. The principle that the volume of a gas is directly proportional to its temperature at constant pressure.
- 29. Group 17 elements on the periodic table, highly reactive nonmetals.
- 32. A reaction that releases heat into its surroundings.
- 35. Electrons in the outermost shell of an atom, involved in chemical bonding.
Down
- 1. The energy required to initiate a chemical reaction.
- 3. The loss of electrons during a reaction by a molecule, atom, or ion.
- 4. A substance that is dissolved in a solvent to form a solution.
- 6. Law The equation of state of a hypothetical gas.
- 7. An insoluble solid that forms from a reaction in a solution.
- 8. The process by which multiple atomic nuclei join together to form a heavier nucleus.
- 11. Group 1 elements on the periodic table, highly reactive and usually stored under oil.
- 12. Atoms of the same element with different numbers of neutrons.
- 15. Table A tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.
- 16. The principle that the pressure of a gas is inversely proportional to its volume at constant temperature.
- 19. The gain of electrons during a reaction by a molecule, atom, or ion.
- 21. Bond A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
- 22. The principle that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
- 24. A technique used to determine the concentration of a solution by reacting it with a solution of known concentration.
- 26. A reaction that absorbs heat from its surroundings.
- 28. A chemical reaction in which water breaks down another compound.
- 30. A substance capable of dissolving other substances.
- 31. A solution that resists changes in pH when an acid or base is added to it.
- 33. A mixture of two or more elements, at least one of which is a metal.
- 34. The smallest unit of matter, composed of protons, neutrons, and electrons.