Nuclei with atomic number up to about twenty will be stable if their neutron : proton ratio is approximately
A) 1 : 1
B) 2 : 1
C) 1 : 2
D) 3 : 1
Correct Answer:
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Q12: The mass of an alpha particle is
A)1
Q13: The charge of an alpha particle is
A)+1
B)+2
C)-1
D)0
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A)the sum of all the
Q18: The instrument used to measure ionizing radiation
Q19: An alpha particle consists of
A)one proton and
Q20: Which particles are deflected towards the negative
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