Which one of the following types of nuclear radiation is not affected by a magne

Question

Which one of the following types of nuclear radiation is not affected by a magnetic field?

β– rays

gamma rays

helium nuclei

β+ rays

alpha particles

Which one of the following pairs of symbols represents two isotopes?

Which process is used in the operation of the smoke detector discussed in Cutnell and Johnson's text?

X-ray absorption

proton absorption

gamma decay

alpha decay

beta decay

Our bodies are mostly made of hydrogen (Z = 1), carbon (Z = 6), and oxygen (Z = 8). In our bodies, are there many more neutrons than protons, many fewer neutrons than protons, or are there about the same number of each?

The half-life a particular isotope of barium is 12 s. What is the activity of a 1.0 × 10–6 kg sample of this isotope?

1.2 × 1015 Bq

1.8 × 1016 Bq

6.0 × 1023 Bq

2.5 × 1017 Bq

3.6 × 1018 Bq

β– rays

Explanation / Answer

3. alpha decay

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