Identify the element that has an atomic number of 40.
A) neon
B) calcium
C) zirconium
D) bromine
E) gold
Correct Answer:
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Q48: Identify the radioactive particle.
A) a beta particle
B)
Q49: Identify the discovery that Millikan made.
A) the
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A) K
B) P
C)
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A) atomic bomb.
B) hydroelectric.
C) First
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Q181: An atom of 13C contains _ protons.
A)6
B)19
C)7
D)9
E)13
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