chem

Edit Answers
123456789101112131415161718192021222324252627282930
Across
  1. 1. very simplified representation of the valence shell electrons in a molecule. It is used to show how the electrons are arranged around individual atoms in a molecule.
  2. 4. the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge.
  3. 6. primarily electrostatic force of attraction between a hydrogen atom that is covalently bound to a more electronegative atom or group
  4. 7. the physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
  5. 11. also known as a molecular ion, is a covalently bonded set of two or more atoms, or of a metal complex, that can be considered to behave as a single unit and that has a net charge that is not zero.
  6. 12. the arrangement of atoms, molecules, or ions of a crystal in the form of a space lattice.
  7. 17. is the branch of science that deals with the properties, composition, and structure of elements and compounds, how they can change, and the energy that is released or absorbed when they change.
  8. 19. the real physical matter of which a person or thing consists and which has a tangible, solid presence.
  9. 20. the substance that is present at the end of a chemical reaction
  10. 21. a chemical bond that involves the sharing of electron pairs between atoms.
  11. 22. a chemical bond in which two pairs of electrons are shared between two atoms.
  12. 24. the basic building block of chemistry.
  13. 25. the type of chemichal bond that is formed when a shared pair of electrons are not shared equally. Their electronegativity can be from 0.0-0.3
  14. 28. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  15. 29. the concept of mixing two atomic orbitals to give rise to a new type of hybridized orbitals.
  16. 30. a chemical substance composed of many identical molecules (or molecular entities) composed of atoms from more than one element held together by chemical bonds.
Down
  1. 1. representation of the valence electrons of an atom that uses dots around the symbol of the element.
  2. 2. a compound or substance that has been purified or prepared, especially artificially.
  3. 3. able to be deformed without losing toughness; pliable, not brittle.
  4. 5. The type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegative.
  5. 8. a chemical bond that involves the sharing of electron pairs between atoms.
  6. 9. measure of the bond strength of a chemical bond, and is the amount of energy needed to break the atoms involved in a molecular bond into free atoms.
  7. 10. a chemical bond in which one pair of electrons is shared between two atoms.
  8. 13. mathematical function describing the location and wave-like behavior of an electron in an atom.
  9. 14. positively charged ion
  10. 15. shows how the atoms making up a compound are arranged within the molecule.
  11. 16. a measure of an atom's ability to attract the shared electrons of a covalent bond to itself.
  12. 18. the type of chemical bond that is formed when electrons are shared equally between two atoms. Their electronegativity can be from 0.3-1.7
  13. 23. Negatively charged Ion
  14. 26. A chemical reaction happens when one or more chemicals are changed into one or more other chemicals
  15. 27. (of a metal or other material) is able to be hammered or pressed permanently out of shape without breaking or cracking.