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