Across
- 2. favourable interaction of two electrons with opposite m , values in the same orbital.
- 4. combining capacity of an atom or radical determined by the number of electrons that it will lose, add, or share when it reacts with other atoms.
- 9. Covalent bond in which electron density is symmetrically distributed
- 11. smallest component of an element
- 14. sample of matter composed of two or more substances, each of which retains its identity and properties.
- 15. compound consisting of 50 or more amino acids.
- 16. Concentration expressed as number of moles of solute per kilogram of solvent.
- 18. reaction of an acid with a base to form a salt and water. Usually, the reaction of hydrogen ions with hydrogen ions to form water molecules.
- 22. bond electrical attraction between two oppositely charged atoms or groups of atoms.
- 23. capacity to do work or transfer heat.
- 26. attraction of atoms to each other through sharing or exchanging electrons.
- 27. Homogeneous mixture of two or more substances.
- 28. negatively charged particle (-1) with a mass 1/1837 of that of a proton.
Down
- 1. elements of Group 17 (VIIA) of the periodic table: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).
- 3. Representation of a molecule, ion or formula unit by showing atomic symbols and only outer shell electrons
- 5. scattering of light by colloidal particles.
- 6. temperature at which liquid and solid coexist in equilibrium; also the freezing point.
- 7. substance that accepts hydrogen ions when dissolved in water
- 8. chemical bond formed by the sharing of electrons between atoms.
- 10. residing on one atom and not shared by other atoms; unshared pair.
- 12. The smallest particle of an element or compound capable of a stable, independent existence.
- 13. atom or group of atoms that has lost one or more electrons.
- 16. Number of moles of solute per litre of solution.
- 17. arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column.
- 19. substance with a sour taste
- 20. atom having the same number of protons but a different number of neutrons in its nucleus.
- 21. different atomic forms of all elements in contrast to ?isotopes?, which refer only to different atomic forms of a single element.
- 24. component of an atomic nucleus with a mass defined as 1 and a charge of +1.
- 25. vertical column in the periodic table; also called a family.
- 29. heterogeneous mixture in which solute-like particles do not settle out.