Across
- 2. any substance composed of identical molecules consisting of atoms of two or more chemical elements.
- 3. an element that readily forms positive ions (cations) and has metallic bonds.
- 7. a theory that the temperature of a substance increases with an increase in either the average kinetic energy of the particles or the average potential energy of separation (as in fusion) of the particles or in both when heat is added.
- 11. a tabular arrangement of the chemical elements by increasing atomic number which displays the elements so that one may see trends in their properties
- 16. metallic substance composed of two or more elements, as either a compound or a solution.
- 17. an imprecise term used to describe a chemical element that forms a simple substance having properties intermediate between those of a typical metal and a typical nonmetal.
- 19. the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus.
- 20. anything that occupies space and has mass.
- 23. the ability to do work and make things move.
- 26. movement of a solvent (such as water) through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane.
- 27. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- 28. a notation of one or two letters representing a chemical element
- 29. a chemical element that forms a salt when it reacts with metal.
- 30. a small localized object to which can be ascribed several physical or chemical properties such as volume, density or mass
Down
- 1. a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.
- 4. particles are smaller than atoms.
- 5. an uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus.
- 6. process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.
- 8. The horizontal rows of the periodic table
- 9. the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus.
- 10. any of the elements found in Group IA of the periodic table (the first column)nd has metallic bonds.
- 12. the basic units of matter and the defining structure of elements.
- 13. any substance that cannot be decomposed into simpler substances by ordinary chemical processes
- 14. also called atomic mass number or nucleon number, is the total number of protons and neutrons in an atomic nucleus.
- 15. the amount of a substance in a defined space.
- 18. a chemical element that mostly lacks the characteristics of a metal.
- 21. an elementary particle that is identical with the nucleus of the hydrogen atom, that along with the neutron is a constituent of all other atomic nuclei, that carries a positive charge numerically equal to the charge of an electron, and that has a mass of 1.673 × 10−27 kilogram.
- 22. any of the divalent strongly basic metals of group II of the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium.
- 24. a usually round part of most cells that is enclosed in a double membrane, controls the activities of the cell, and contains the chromosomes
- 25. a column in the periodic table of the chemical elements.