An atom of titanium has a mass number of 48 and an atomic number of 22. A second titanium atom could have the following number of subatomic particles:
A) 26 p, 22 e, 22 n
B) 21 p, 21 e, 26 n
C) 22 p, 22 e, 24 n
D) 22 p, 26 e, 22 n
B
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20
The melting point of gallium is what type of characteristic?
A) elemental property
B) chemical property
C) physical property
D) magnetic property
C
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15
Which of the following matches of group number and common name is incorrect?
A) Group 2 - alkaline earth metals
B) Group 4 - alkali metals
C) Group 17 - halogens
D) Group 18 - noble gases
B
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15
Group 1 on the periodic table (excluding hydrogen) is known as the
A) alkali metals
B) alkaline earth metals
C) transitional metals
D) noble gases
A
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15
The symbol "Bk" represents what element?
Berkelium
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15
In a periodic table, vertical columns are called:
A) rows
B) periods
C) groups
D) noble gases
C
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15
The symbol "Ba" represents what element?
Barium
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20
Gallium has 31 protons and 39 neutrons. How many electrons are in an atom of gallium?
A) 31
B) 39
C) 70
D) 8
A
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15
Which of the above has the greater number of electrons?
A) Co
B) Ni
B
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What is the symbol for Indium?
In
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20
What is the element found in the periodic table in group 4 and period 6?
A) hafnium
B) selenium
C) gadolinium
D) chromium