Across
- 6. a positively charged atom or group of atoms, or a radical which moves to the negative pole (cathode) during electrolysis.
- 9. A spherical path in which electrons move around the nucleus
- 10. a measure of solution concentration expressed in moles of solute per liter of solution.
- 12. Element that is a conductor of electricity, malleable, ductile and lustrous.
- 14. a method of analyzing the composition of a solution by adding known amounts of a standardized solution until a given reaction (color change, precipitation, or conductivity change) is produced.
- 17. A form of a chemical element in which the atoms have the same number of protons but with a different number of neutrons
- 18. the substances that dissolves the solute
- 20. an uncharged atomic particle that has a mass nearly equal to that of the proton
Down
- 1. a charged entity formed when an atom gains or loses one or more electrons
- 2. chemical reaction in which an atom or molecule gains an electron; decrease in positive valence; addition of hydrogen to a molecule.
- 3. the basic unit of a chemical element ; made up of protons, electrons & neutrons
- 4. a substance that makes a chemical reaction occur faster without itself being consumed in the reaction
- 5. the substance that dissolves in a solvent
- 7. ion having a negative charge; an atom with extra electrons. Atoms of non-metals, in solution
- 8. a negatively charged particle in an atom or ion.
- 11. to thin out, or having been thinned out; less than full strength.
- 13. any substance that cannot be broken down into simpler substances (pure substance)
- 15. checking, adjusting, or systematic standardizing of the graduations of a quantitative measuring instrument.
- 16. a positively charged particle in the atom's nucleus
- 19. the simplest structural unit of a substance that retains the properties of the substance, and is composed of one or more atoms.