Exam (elaborations)
NAS 2 EXAM 2 TCC QUESTIONS AND ANSWERS 2024
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NAS 2 EXAM 2 TCC QUESTIONS AND ANSWERS 2024
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NAS 2 EXAM 2 TCCMatter - ANSWERS-Anything that has mass and takes up space
Solid - ANSWERS-Definite shape and volume
liquid - ANSWERS-A state of matter that has no definite shape but has a definite
volume.
Gas - ANSWERS-changeable shape and volume
Energy - ANSWERS-capacity to do work or put matter into motion
kinetic energy - ANSWERS-energy in action
potential energy - ANSWERS-stored energy
chemical energy - ANSWERS-stored in bonds of chemical substances
mechanical energy - ANSWERS-directly involved in moving matter
, radiant energy - ANSWERS-exhibits wavelike properties (X-rays, visible light)
Elements - ANSWERS-Cannot be broken down by ordinary chemical means
physical properties - ANSWERS-detectable with our senses or measurable
chemical properties - ANSWERS-how atoms interact (bond) with one another
orbital model - ANSWERS-Modern model of atomic structure; depicts the general
location of electrons as a haze of negative charge called the electron cloud
atomic number - ANSWERS-the number of protons in the nucleus of an atom
mass number - ANSWERS-the sum of the number of neutrons and protons in an
atomic nucleus
Isotopes - ANSWERS-variation elements of the same element that differ in the
number of neutrons and same protons
Radioisotopes - ANSWERS-heavier isotopes that are unstable and tend to
decompose to become more stable; unstable nucleus that emits energy and
particles
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