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Atoms/Periodic Table Of Elements
Test Description: STAAR chemistry review
Instructions: Answer all questions to get your test result.
1) Which of the following will determine the identity of an atom?
A
neutral neutrons
B
negative electrons
C
positive protons
2) Inside the nucleus of an atom there are?
A
(neutral) neutrons and valence electrons
B
(positive) protons and (neutral) neutrons
C
(positive) protons and (negative) electrons
3) The valence electrons are located on the ?
A
2nd shell (cloud)
B
outermost shell (cloud)
C
in the nucleus
D
inner shell (cloud)
4) The electrons are _______ and found in the ___________
A
neutral, nucleus
B
neutral, electron clouds (shells)
C
negative, electron clouds (shells)
D
positine, nucleus
5) Neutrons have a _______ mass, are ________ and found in the __________.
A
large, neutral, nucleus
B
tiny, neutral, electron cloud
C
tiny, positive, nucleus
D
large, negative, electron cloud
6) What do the valence electrons determine?
A
an atom's identity
B
what period the atoms belongs to
C
how chemically reactive the atom is
D
how many shells (clouds) an atom has
7) Positively charged protons have a _______ mass and are found in __________
A
tiny, electron cloud
B
tiny, nucleus
C
large, electron cloud
D
large, nucleus
8) The atomic number will give you the amount of __________ and ____________ an atom has.
A
neutrons and valence electrons
B
protons and electrons
C
neutrons and electrons
D
valence electrons and protons
9) The mass of an atom can be found by adding what two subatomic particles?
A
protons and neutrons
B
protons and electrons
C
neutrons and electrons
D
electrons and valence electrons
10) Elements in the same column (group) will have what 3 things in common?
A
mass, properties, electrons
B
same # of valence electrons, chemical reactivity, similair physical properties
C
same # of protons, chemical reactivity, similiar physical properties
D
same # of electron clouds, chemical reactivity, similiar physical properties
11) An atom has an atomic number of 16 and an atomic mass of 40. How many protons does this atom have?
A
56
B
24
C
16
D
40
12) Which of the following describes a metal?
A
brittle, a gas, and a poor conductor
B
malleable, ductile, and a semi-conductor
C
malleable, ductile, and a good conductor
D
brittle, dull, and a semi-conductor
13) Which of the following atoms would most likely be chemically reactive?
A
An atom that has 8 valence electrons.
B
An atom that has 1 valence electron
C
An atom that has 8 protons.
D
An atom that has 1 proton.
14) If an atom has 3 electron clouds (shells), what would you know for sure about this atom?
A
The atom will be reactive due to having 3 electron clouds
B
The atom will be in group 3
C
The atom will be in period (row) 3
D
The atom will be in group 13
15) Which group on the periodic table will be the stable (chemically unreactive) inert gases?
A
nonmetals
B
metalloids
C
metals
D
Noble Gases
16) The elements found on the zig zag staircase are semiconductors and share properties of metals and nometals are known as
A
Grp. 1- they do not have their outermost electron cloud full
B
Grp. 17- they do not have their outermost electron cloud full (7 valence electrons)
C
none of the above
D
Grp. 18- they have their outermost electron cloud full (8 valence electrons)
17) Transform boundary plates slide past each other in the opposite way, they will create
A
volcanoes, island arcs
B
none of the above
C
mid ocean ridge, rift valley
D
fault, earthquakes
18) COnvergent boundaries (COllide) towards each other creating
A
rift valley, mid ocean ridge
B
volcanoes, island arcs
C
fault, earthquake
19) Plates that are diverging (or dividing) will create
A
rift valley, mid ocean ridge
B
none of the above
C
fault, earthquake
D
volcanoes, island arcs
20) The moon phase that is next to the Sun making it appear like a dark black circle in the sky is
A
1st quarter
B
full moon
C
waning gibbous
D
new moon
*select an answer for all questions
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