HEALTH PHYSICS EXAM 1 2025 QUESTIONS AND ANSWERS

HEALTH PHYSICS EXAM 1 2025
QUESTIONS AND ANSWERS


Ionizing Radiation - ....ANSWER ...-X-rays


Protons

Neutrons

Electrons


Nuclei of atoms contain the following particles: - ....ANSWER ...-Protons

and neutrons


A neutral atom has the same number of: - ....ANSWER ...-protons and

electrons


Units: x 10- - ....ANSWER ...-c - 10^-2


m - 10^-3

u - 10^-6

n - 10^-9




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, p - 10^-12


Units: x 10+ - ....ANSWER ...-k - 103


M - 106

G - 109

T - 1012

· The M shell (n=3) of an atom can contain a maximum of _____ electrons -

....ANSWER ...-o 18


o 2n^2 = 2(3)^2 = 2(9) = 18


Ionization: - ....ANSWER ...-An event when an electron is ejected from an

atom


Avogardo's Number - ....ANSWER ...-6.023 x 10^23


Atomic number (Z) - ....ANSWER ...-Number of protons in an atom


Determines atomic species


Mass Number (A) - ....ANSWER ...-Total number of nucleons in an atom

(neutrons and protons)


Atomic Mass - ....ANSWER ...-Total mass in an atom including electrons


Isotopes - ....ANSWER ...-same number of protons


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