Chemistry Crossword Puzzle

123456789101112131415161718192021222324252627282930
Across
  1. 3. A column in the periodic table
  2. 5. Joining of two atoms in a stable arrangementmolecule/Discrete group of atoms that share electrons
  3. 9. Consists of only one kind of atom
  4. 12. A measure of the pull of gravity of the earth in a body
  5. 14. Salt-formers
  6. 15. Atoms of the same element having a different number of neutrons
  7. 17. The weighted average of the mass of the naturally occurring isotopes of a particular element reported in atomic mass units
  8. 18. Building blocks of nucleon
  9. 19. has a constant composition, regardless of sample size and origin of sample
  10. 22. Assigning an unambiguous name to each compound is called ____________
  11. 25. All matter is composed of the same building blocks called?
  12. 26. discrete group of atoms
  13. 28. Periodic table can be divided into four regions called?
  14. 29. Amount or quantity of matter in a body
  15. 30. Negatively charged ions
Down
  1. 1. The lowest energy arrangement of electrons is called the ________ state
  2. 2. A row in the periodic table
  3. 4. A physical property that relates the mass of a substance to its volume
  4. 6. Dense core that contains the protons and neutrons
  5. 7. Every atom of a given type of element always has the same number of protons in the nucleus, a value called the ________ number
  6. 8. Smallest region of space where the probability of finding the electron is great
  7. 10. Ability or tendency of atoms to attract electrons from adjacent atoms
  8. 11. When particles and anti-particles meet
  9. 13. Nuclear glue
  10. 16. Black deposit
  11. 20. Ionic _________ are composed of cations and anions
  12. 21. Highly ionized particles of gases
  13. 23. Have properties intermediate between metals and nonmetals
  14. 24. Positively charged ions
  15. 27. Disturbance set as a particle