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Chemistry Review
Test Description: Introduction to chemistry, periodic table, atomic structure basics.
Instructions: Answer all questions to get your test result.
1) Which phrase best describes atoms?
A
smallest basic units of matter
B
parts of a nucleus
C
single-celled organism
D
positively charted particles
2) Which of the following cannot be broken down by ordinary chemical means?
A
compound
B
bond
C
element
D
molecule
3) An ion is formed when an atom gains or loses
A
bond
B
electrons
C
neutrons
D
protons
4) The atomic number of an element represents
A
the number of protons OR electrons
B
the number of neurons
C
the number of protons + electrons
D
the number of neutrons
5) The atomic mass of an element represents
A
the number of protons + electrons + neutrons
B
the number of protons + electrons
C
the number of protons + neutrons
D
the number of neutrons
6) What is the symbol for mercury and how many protons does it have?
A
Mr, 80 protons
B
Hg, 200 protons
C
Mc, 80 protons
D
Hg, 80 protons
7) Which element has 17 electrons, 19 neutrons, 17 protons
A
Neon
B
Chlorine
C
Sulfur
D
Potassium
8) If an element is in Period 4 on the periodic table, you know it has
A
4 valence electrons
B
4 protons
C
4 neutrons
D
4 electron orbitals
9) If an element is in Group VIIIA or 18, you know it
A
is a noble gas with 18 valence electrons
B
is a noble gas with 8 valence electrons
C
is a non-metal with 8 valence electrons
D
is a metal with 18 valence electrons
10) Looking at the periodic table of elements, non-metals are
A
located to the left of the stair-step line
B
located to the right of the stair-step line
C
located in Group 1 only
D
located adjacent to the stair-step line
*select an answer for all questions
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