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Ukuran huruf
S
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Lembar kerjaMatter Test I
Total soal: 27
Worksheet time: 14mins
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Kelas
Tanggal
1.
Which statement about subatomic particles is NOT true?
a)
Protons and neutrons have almost the same mass.
b)
Protons and electrons have opposite charges.
c)
Protons and neutrons have the same charge.
d)
Unlike protons and , neutrons have no charge
2.
Which of the following is unique for any given element? (In other words, it is different for each element, like DNA or a fingerprint.)
a)
the number of protons
b)
the charge of electrons
c)
the mass of a neutron
d)
the number of neutrons
3.
The atomic number of an element equals the number of
a)
protons only.
b)
neutrons only.
c)
protons and neutrons combined.
d)
electrons only.
4.
The atomic mass equals the number of
a)
protons only.
b)
neutrons only.
c)
protons and neutrons combined.
d)
electrons only.
5.
What is the atomic number for fluorine?
a)
9
b)
19
c)
36
d)
can't be determined
6.
What is the atomic mass for fluorine?
a)
9
b)
10
c)
19
d)
can't be determined
7.
How many protons does fluorine have?
a)
9
b)
10
c)
19
d)
can't be determined
8.
How many neutrons does fluorine have?
a)
9
b)
10
c)
19
d)
can't be determined
9.
For fluorine, how many electrons are located on the LAST energy level (valence electrons)?
a)
1
b)
7
c)
8
d)
10
10.
How is the periodic table arranged?
a)
by increasing atomic number
b)
by atomic mass
c)
by the number of neutrons
d)
by state of matter
11.
Phosphorus has 15 protons, 16 neutrons, and 15 electrons. What is the atomic number?
a)
15
b)
16
c)
31
d)
can't be determined
12.
Phosphorus has 15 protons, 16 neutrons, and 15 electrons. What is the atomic mass?
a)
15
b)
16
c)
30
d)
31
13.
Which element is the MOST reactive?
a)
Fe
b)
Hs
c)
Cu
d)
Rg
14.
Which element is the LEAST reactive?
a)
Fe
b)
Hs
c)
Cu
d)
Rg
15.
Which element is the LIGHTEST?
a)
Fe
b)
Hs
c)
Cu
d)
Rg
16.
Which element is the HEAVIEST?
a)
Fe
b)
Hs
c)
Cu
d)
Rg
17.
Which pair has the most in common? (Cu and Au) OR (Rh and Pd)?
a)
Cu and Au
b)
Rh and Pd
18.
Which pair has the most in common? (Fe and Rh) OR (Ir and Pt)?
a)
Fe and Rh
b)
Ir and Pt
19.
Elements in the same group
a)
have the same number of protons.
b)
have the same atomic mass.
c)
have the same number of energy levels in the electron cloud.
d)
have the same number of valence electrons.
20.
Elements in the same period
a)
have the same number of protons.
b)
have the same atomic mass.
c)
have the same number of energy levels in the electron cloud.
d)
have the same number of valence electrons.
21.
The image below would represent particles in a
a)
solid.
b)
liquid.
c)
gas.
d)
plasma.
22.
The image below would represent particles in a _____. (Hint: notice the particles are charged.)
a)
solid.
b)
liquid.
c)
gas.
d)
plasma.
23.
The image below would represent particles in a
a)
solid.
b)
liquid.
c)
gas.
d)
plasma.
24.
The image below would represent particles in a
a)
solid.
b)
liquid.
c)
gas.
d)
plasma.
25.
_______________ thermal energy causes particles to move faster and expand.
a)
Adding
b)
Removing
c)
Decreasing
26.
_______________ thermal energy causes particles to move slower and contract.
a)
Adding
b)
Removing
c)
Increasing
27.
As thermal energy is added to a substance, density decreases.
a)
True
b)
False
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