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Anatomy and Physiology - Chapter 2 unity of form and function 2023/2024 Rated A+
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Anatomy and Physiology - Chapter 2 unity of form and function 2023/2024 Rated A+
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Anatomy and Physiology - Chapter 2unity of form and function
Biochemistry - ANSthe study of the molecules that compose living organisms
Element - ANSA substance that cannot be broken down into simpler substances - simplest
form of matter to have chemical properties
atomic number - ANSThe number of protons in the nucleus of an atom
Periodic Table of Elements - ANSarrangement of elements according to their atomic number
represented by 1 or 2 letter symbols
Minerals - ANSa solid inorganic substance of natural occurance
Nucleus - ANSCenter of an atom
electrons - ANSConcentric clouds surrounding nucleus - single charge - low mass.
NEGATIVE CHARGE
valence electrons - ANSElectrons on the outermost energy level of an atom
Noble gases - ANSChemically stable and does not react with the rest of the periodic table.
isotopes - ANSvariant forms of the same element that differ in the number of neutrons.
Isotopes of an element are chemically similar because they have the same number of
valence electrons.
Atomic Weight - ANSProtons+Neutrons. accounts for the fact that an element is a mixture of
isotopes.
Radioisotopes - ANSunstable isotopes that decay and give off radiation
Physical half-life of radioisotopes - ANStime required for 50% to decay to a stable state
Biological half-life of radioisotopes - ANStime required for 50% to disappear from the body
Ion - ANSa charged particle
ionization - ANStransfer of electrons from one atom to another
Anion - ANSParticle that gains electrons (net neg charge)
cation - ANSa positively charged ion
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