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Chemical Bonds Test
Test Description: Physical Science (11th)
Instructions: Answer all questions to get your test result.
1) Why do the noble gases NOT form compounds readily?
A
They have empty outer energy levels
B
They have seven electrons in the outer energy levels
C
Their outer energy levels are completely filled with electrons
D
They have no electrons
2) How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?
A
6
B
2
C
8
D
4
3) What kind of chemical bond is formed when an equal exchange of electrons occurs?
A
Hydrate
B
Ionic
C
Magnetic
D
Covalent
4) What is the charge of an aluminum ion that has 13 protons and 10 electrons?
A
2+
B
3+
C
1+
D
3-
5) What are the charged particles that form when atoms gain or lose electrons?
A
valence electrons
B
ions
C
bonds
D
atoms
6) In a chemical formula, the number of each type of atom in the compound is shown by numbers called __________.
A
chmical symbols
B
subscripts
C
oxidation numbers
D
superscripts
7) The elements that make up a compound and the exact number of atoms of each element in a unit of the compound can be shown in a
A
chemical symbol
B
superscript
C
subscript
D
chemical formula
8) What do atoms gain, lose, or share when they bond?
A
neutrons
B
atoms
C
protons
D
electrons
9) Most atoms form bonds using which of the following?
A
valence electrons
B
protons
C
electrons
D
neutrons
10) What is the joining of atoms to form new substances?
A
Bonding Atoms
B
Joining chemicals
C
Chemical bonding
D
Bonding
*select an answer for all questions
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