Guide Exam Latest 2026/2027
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1. The nuclear symbol of helium, 4/2 He, is also the symbol for
designating a(n)
a. Proton
b. Neutron
c. gamma ray
d. beta particle
e. alpha particle
- ANS - e
2. The damaging effects of radiation on the body are a result of
a. the formation of unstable ions or radicals
b. the formation of radioactive atoms in the body
c. transmutation reactions in the body
d. extensive damage to nerve cells
e. the production of radioactive sodium ions in the body
- ANS - a
, 3. For 85/38 Sr, there are
a. 85 protons and 38 neutrons
b. 47 protons and 38 neutrons
c. 38 protons and 47 neutrons
d. 38 protons and 85 neutrons
e. 85 protons and 47 neutrons
- ANS - c
4. If absorbed internally, alpha particle emitters are the most
damaging because alpha particles
a. have the largest charge
b. have the greatest energy
c. have the greatest mass
d. consist of high energy electrons
e. consist of pure energy
- ANS - c
5. When an alpha particle is emitted from the nucleus of an atom, the
nuclear mass
a. increases by two units
b. decreases by four units
c. increases by one unit
d. decreases by two units
e. remains the same
- ANS - b