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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
negative electrons
B
neutral neutrons
C
positive protons
2) Inside the nucleus of an atom there are?
A
(positive) protons and (neutral) neutrons
B
(positive) protons and (negative) electrons
C
(neutral) neutrons and valence electrons
3) The valence electrons are located on the ?
A
inner shell (cloud)
B
in the nucleus
C
2nd shell (cloud)
D
outermost shell (cloud)
4) The electrons are _______ and found in the ___________
A
negative, electron clouds (shells)
B
positine, nucleus
C
neutral, electron clouds (shells)
D
neutral, nucleus
5) Neutrons have a _______ mass, are ________ and found in the __________.
A
tiny, positive, nucleus
B
large, neutral, nucleus
C
large, negative, electron cloud
D
tiny, neutral, 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
large, nucleus
B
tiny, electron cloud
C
tiny, nucleus
D
large, electron cloud
8) The atomic number will give you the amount of __________ and ____________ an atom has.
A
protons and electrons
B
neutrons and valence electrons
C
valence electrons and protons
D
neutrons and electrons
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
same # of valence electrons, chemical reactivity, similair physical properties
B
same # of protons, chemical reactivity, similiar physical properties
C
mass, properties, electrons
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
24
B
16
C
40
D
56
12) Which of the following describes a metal?
A
brittle, a gas, and a poor conductor
B
brittle, dull, and a semi-conductor
C
malleable, ductile, and a semi-conductor
D
malleable, ductile, and a good 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 proton.
C
An atom that has 1 valence electron
D
An atom that has 8 protons.
14) If an atom has 3 electron clouds (shells), what would you know for sure about this atom?
A
The atom will be in group 13
B
The atom will be in period (row) 3
C
The atom will be reactive due to having 3 electron clouds
D
The atom will be in group 3
15) Which group on the periodic table will be the stable (chemically unreactive) inert gases?
A
metals
B
Noble Gases
C
metalloids
D
nonmetals
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
none of the above
C
Grp. 18- they have their outermost electron cloud full (8 valence electrons)
D
Grp. 17- they do not have their outermost electron cloud full (7 valence electrons)
17) Transform boundary plates slide past each other in the opposite way, they will create
A
volcanoes, island arcs
B
mid ocean ridge, rift valley
C
fault, earthquakes
D
none of the above
18) COnvergent boundaries (COllide) towards each other creating
A
volcanoes, island arcs
B
fault, earthquake
C
rift valley, mid ocean ridge
19) Plates that are diverging (or dividing) will create
A
fault, earthquake
B
none of the above
C
volcanoes, island arcs
D
rift valley, mid ocean ridge
20) The moon phase that is next to the Sun making it appear like a dark black circle in the sky is
A
full moon
B
1st quarter
C
new moon
D
waning gibbous
*select an answer for all questions
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