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Benchmark 1 Review 1
Test Description: Chemistry review for CPS Benchmark 1
Instructions: Answer all questions to get your test result.
1) The periodic table is organized so chemists can easily see
A
The smell and taste of each element
B
The importance of each element
C
The color of each element
D
The atomic number and weight of each element
2) On the periodic table, an element's atomic number is the number of ______________ in its nucleus.
A
neutrons
B
isotopes
C
protons
D
electrons
3) Based on its location in the periodic table, which of the following is classified as a metal?
A
sodium
B
nitrogen
C
sulfur
D
carbon
4) Most of the mass of an atom is determined by the number of ________.
A
protons only
B
protons and neutrons
C
protons and electrons
D
electrons only
5) Vertical columns in the periodic table are called ________.
A
metals
B
groups
C
periods
D
isotopes
6) Electrons are in a defined region of space close to the nucleus called ____.
A
ion
B
cytoplasm
C
electron cloud
D
neutrons
7) Horizontal rows in the periodic table are called _____.
A
periods
B
groups
C
columns
D
families
8) Elements are most similar with other elements that are ____.
A
in the same group
B
in the same period
C
in different periods
D
in different groups
9) The charge of an ion is defined as _____.
A
protons minus electrons
B
protons minus neutrons
C
protons plus neutrons
D
electrons minus protons
10) All atoms of the same element share the same number of _____.
A
protons
B
none of the above
C
neutrons
D
electrons
11) Which of the following best describes electrons in the quantum mechanical model of the atom?
A
electrons have the same mass as protons.
B
electrons do not exist in the quantum theory.
C
electrons travel in circles around the nucleus.
D
electrons travel in waves around the nucleus.
12) True or False: Most of an atom is filled with empty space.
A
False
B
True
*select an answer for all questions
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