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Across 1. convalent bond produced by the sharing of one pair of electrons between two atoms 4. force of attraction between polar molecules 6. any process that results in the formation of an ion 7. pair of electrons that is not involved in bonding and that belongs exclusively to one atom 9. intermolecular attractions resulting frmo the constant motion of electrons and the creation of instantaneous dipoles 11. abiltiy of substance to be drawn, pulled, or extruded through a small opening to produce a wire 12. orbitals of equal energy produced by the combination of two or more orbitals on the same atom 14. covalent bond produced by the sharing of three pairs of electrons between two atoms 16. if bonds have an uneven distribution of charge 18. energy required to remove one electron from a neutral atom of an element 20. covalent bond in which the bonded atoms have an unequal attraction for the shared electrons 21. the elements of group two of the periodic table 22. arrangement of the elements in order of their atomic number so that elements with similar properties fall into the same column or group 24. d-block elements are metals with typical metallic properties 28. an uneven distribution of molecular charge 30. states that repulsion between the sets of valence level electrons surrounding an atom causes these sets to be oriented as far apart as possible 34. indicates the relative numbers of atoms of each kind in a chemical compound by using atomic symbols and numerical subscipts 35. negative ion 38. double and triple bonds 40. energy change that occurs when an electron is acquired by a neutral atom 42. formulas in which atomic symbols represent nuclei and inner shell electrons, dot pair or dashes between two atomic symbols represent electron pairs in covalent bonds, and dots adjacent to only one atomic symbol represent unshared electroms 44. chemical bonding that results from the attraction between metal atoms and the surrounding sea of electrons 46. 14 elements with the atomic numbers from 90 to 103 47. shows the types and numbers of atoms combined ina single molecule of a molecular compound 49. energy released when one molecule of an ionic crystalline compound is formed from gaseous ions 50. composed of negative and positive ions that are combined so that the numbers of positive and negative charges are equal 52. abilitly of substance to be hammerd or beaten into thin sheets 53. mixing of two or more atomic orbitals of similar energies on the same atom to produce new orbitals of equal energies 55. intermolecular force in which a hydrogen atomis bonded to a highly electronegative atom is attracted to an unshared pair of electrons of an electronegative atom in a nearby molecule 56. distance between two bonded atoms at their minimum potential energy

Down 2. covalent bond in which the bonding electrons are shared equally by the bonded atoms, resulting in a balanced distribution of electrical charge 3. mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together 5. electron configuaration notation in which only the valence electrons of an atom, of a particular element are shown 6. force attraction between molecules 8. p-block elements together with the s-block elements 10. the elements of group one of the periodic table 13. chemical compound whose simplest units are molecules 15. molecule containing only two atoms 17. bonding in molecules or ions that cant be correctly represented by a single Lewis structure 19. the physical and chemical properties of the elements are periodic functions of their atomic numbers 23. one half the distance between the nuclei of identical atoms that are bonded together 25. indicates the kind, number, arrangement, and bonds but not the unshared pairs of the atoms in a molecule 26. created by equal but opposite charges that are separated by a short distance 27. charged group of covalently bonded atoms 29. simplist collecton of atoms from which an ionic compounds formula can be established 31. are the 14 elements with the atomic numbers from 58 to 71 32. covalent bond produced by the sharing of two pairs of electrons between two atoms 33. electrons available to be lost, gainded, or shared in the formation of chemical compounds 36. neutral group of atoms that are held together by covalent bonds 37. measure of the ability of an atom in a chemical compound to attract electrons 39. chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons, has an octet of electrons in its highest occupied energy level 41. energy required to break a chemical bond and form neutral isolated atoms 43. results from sharing of electrons pairs between two atoms 45. fluorine, chlorine, bromine, iodine, and asatine 48. chemical bonding that results from the electrical attraction between large numbers of cations and anions 51. positive ion 54. an atom or group of bonded atoms that has a positive or negative charge