A Test 1_RADT_A161 Fundamentals
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A Test 1_RADT_A161 Fundamentals
201303 RADT A161 Fundamentals
A Test 1
what 3 are the base quantities of physics
The nucleus contains particles called nucleons, of which there are what two types:
protons and neutrons
Cosmic rays and radon are classified as what types of radiation
Natural environmental radiation
Electromagnetic energy includes what types of disturbances in space?
1 & 2
Electromagnetic radiation varies in terms of its:
(3) Velocity (speed)
1 and 2 only
How are anatomic structures that absorb x-ray photons described
If wavelength increases, what happens to frequency?
when Energy radiates matter and removes an orbital electron from the interacted atom what occuring
Ion pairs only occur when
an orbital electron is separated from the atom during ionizing radiation.
The law of conservation of matter explains that matter can neither be created nor destroyed but simply ________.
What differentiates x-rays from gamma rays?
What form of natural environmental radiation accounts for the greatest source of human exposure to ionizing radiation?
What is the maximum number of electrons in an N shell if it is the outermost shell of an atom?2n2
a maximum of ___ electrons can exist in the outermost shell of any atom
What kind of energy represents the strength of attachment between the orbiting electrons and the nucleus?
Electron binding energies
What occurs when atoms of various elements combine?
What occurs when several molecules of the same composition combine?
What standard system of units has been adopted by all countries and is used in all branches of science?
International System of Units (SI)
What type of bonding occurs when an electron transfers from one atom to another?
Which electron shell is closest to the nucleus?
K, L, M, N
Which fundamental particle has a neutral charge?
_______ have no mass or charge as they travel ionizing air and penetrating matter
alpha particles have a _____ charge
beta particles have a______ charge
______is not a member of the electromagnetic spectrum?
Which of the following on the electromagnetic spectrum have the ability to ionize matter?
(4) Gamma rays
3 and 4 only
Which shell is furthest from the nucleus and has the least amount of binding energy?
Which term accounts for the number of waves that pass a set point in a set amount of time?
Which type of atom presents with the same number of protons but a varying number of neutrons?
Which type of atomic bonding is described when two atoms are bonded together by shared electrons revolving around both atoms nucleus?
what are the two primary ways atoms bond together
Which wave characteristic refers to the height of a wave?
energy emitted and transferred through space
is defined as
The orbital electron and the atom from which it was separated are called
an ion pair
Velocity is a measure of
How fast something is going
The atomic number of uranium is
are electrically neutral
X-ray's behave like particles and move as photons. This is known as the
a reduction in the number of primary photons in the x-ray beam
The smallest possible unit of electromagnetic energy is the
Electric current is measured in _________.
Electrical potential is measured in ________.