Q140
Pick out the wrong statement.
A.
The ratio of the density of the 'nucleus' to that of the 'atom' is 1012
B.
Α-particle is identical with a doubly charged helium ion
C.
The mass of deuterium atom is half that of helium atom
D.
Gamma rays are high energy electrons
AnswerAnswer: Option D
Solution
Answer: Option D
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