Biology brooker fifth edition chapter 2 (2.1 and 2.2) study guide solutions
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Course
Brooker Biology
Institution
Brooker Biology
Biology brooker fifth edition chapter 2 (2.1
and 2.2) study guide solutions
matter - ANSWER-Anything that has mass and takes up space. Usually solids, liquids, and gases. (In
living things)
atoms - ANSWER-the smallest functional units of matter that form all chemical substances and
ultimately ...
Orbital - ANSWER✔✔-The region surrounding the nucleus of an atom where the probability is high of
finding a particular electron.
Electron shells - ANSWER✔✔-An energy level representing the distance of an electron from the nucleus
of an atom.
Energy - ANSWER✔✔-The ability to do work or cause change
valence electrons - ANSWER✔✔-Electrons on the outermost energy level of an atom
atomic number - ANSWER✔✔-the number of protons in the nucleus of an atom
atomic mass - ANSWER✔✔-the weighted average of the masses of the isotopes of an element (protons +
neutrons)
Dalton (DA) - ANSWER✔✔-alternative unit equivalent to the atomic mass unit
Mole (mol) - ANSWER✔✔-the amount of a substance that contains 6.02 x 10^23 representative particles
of that substance
Isotopes - ANSWER✔✔-Atoms of the same element that have different numbers of neutrons
Radioisotopes - ANSWER✔✔-An isotope that has an unstable nucleus and undergoes radioactive decay
Trace elements - ANSWER✔✔-elements required by an organism in only small quantities
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