Chemistry 12
Review Worksheet Fall 2025 Comprehensive
Questions & Answers (Passed) Oxford High
School, Oxford
Name: _____________________________ Date: _________________________
______________________________________________________________________
1. a) What is the smallest particle into which an element can be divided and still
maintain its properties?
b) The answer from (a) is made up of even smaller subatomic particles. What are
they?
c) Give a little description of each subatomic particle (their charge, where they are
found, etc).
2. a) For the element Aluminum state the following:
Symbol:
Atomic Number:
, Atomic Mass (round):
Number of protons:
Number of electrons:
Number of neutrons (show how you calculated):
b) Draw a Bohr-Rutherford diagram for Sodium
3. The Periodic Table can be divided into metals, non-metals and metalloids. State
where you can find each of these types of elements on the table and ONE property of
each.
4. When the maximum number of electrons is in an energy level, it is said to be a filled
energy level. The last or outer energy level is called the _______________________
shell. Only the electrons in this shell participate in ___________________________.
When two or more elements combine the result is a ____________________. But
how do these atoms bond together???? In order to understand bonding we need to
look at the atoms that do not form bonds - _____________________ (Group ____).
This group’s outer energy level is __________________ which makes these atoms
very ______________. This stability is why atoms wish to achieve a filled outer
energy level and to make this possible they must form bonds with other atoms. The
___________ rule states that atoms will gain, lose or share ____________________
in order to obtain eight electrons in their valence shell.
Review Worksheet Fall 2025 Comprehensive
Questions & Answers (Passed) Oxford High
School, Oxford
Name: _____________________________ Date: _________________________
______________________________________________________________________
1. a) What is the smallest particle into which an element can be divided and still
maintain its properties?
b) The answer from (a) is made up of even smaller subatomic particles. What are
they?
c) Give a little description of each subatomic particle (their charge, where they are
found, etc).
2. a) For the element Aluminum state the following:
Symbol:
Atomic Number:
, Atomic Mass (round):
Number of protons:
Number of electrons:
Number of neutrons (show how you calculated):
b) Draw a Bohr-Rutherford diagram for Sodium
3. The Periodic Table can be divided into metals, non-metals and metalloids. State
where you can find each of these types of elements on the table and ONE property of
each.
4. When the maximum number of electrons is in an energy level, it is said to be a filled
energy level. The last or outer energy level is called the _______________________
shell. Only the electrons in this shell participate in ___________________________.
When two or more elements combine the result is a ____________________. But
how do these atoms bond together???? In order to understand bonding we need to
look at the atoms that do not form bonds - _____________________ (Group ____).
This group’s outer energy level is __________________ which makes these atoms
very ______________. This stability is why atoms wish to achieve a filled outer
energy level and to make this possible they must form bonds with other atoms. The
___________ rule states that atoms will gain, lose or share ____________________
in order to obtain eight electrons in their valence shell.
