Q69
The nucleus of the atom _4^9 Be consists of
The nucleus of the atom consists of
A.
13 up quarks and 13 down quarks
B.
13 up quarks and 14 down quarks
AnswerC.
14 up quarks and 13 down quarks
D.
14 up quarks and 14 down quarks
Answer: Option B
Solution
Answer: Option B
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