CHEM 1001/CHM1020/CHM1025C/CHM1032C Name: ______________
Module Three Sample Pretest
Module Three: Part K Atomic Theory Vocabulary 10 points
Fill in the blank with the word(s) that best fit the description:
______________1. A subatomic particle having negligible mass and a relative mass of
______________2. A region of space outside the nucleus where either zero, one, or
two electrons may populate.
______________3. That part of the atom which does not take part in the ordinary
______________4. The central part of an atom.
______________5. A neutral subatomic particle having an approximate mass of 1 amu
______________6. A number assigned to each element which defines the number of
protons in the nucleus of the atom.
______________7. A number assigned to each element which defines the total number
of protons and neutrons found in the nucleus.
______________8. An element with the same atomic number but different mass
______________9. A charged atom (electrons and protons are NOT in balance)
_____________10. The weighted average mass of all the naturally occurring isotopes
of an element.
Below write the word and the definition which is in Corwin’s Chapters 5 and 6 but not one of the above: