Bio 1201 Exam 1 Questions And Answers (Verified And Updated)
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Course
BIO 1201
Institution
BIO 1201
Bio 1201 Exam 1 Questions And Answers
(Verified And Updated)
Matter consists of chemical elements in pure form and in combinations called ______________.
- answerCompounds
______________ consists of chemical elements in pure form and in combinations called
compounds. - answerMatter
Matter con...
Bio 1201 Exam 1 Questions And Answers (Verified And Updated) Matter consists of chemical elements in pure form and in combinations called ______________. - answer✔✔Compounds _____________ _ consists of chemical elements in pure form and in combinations called compounds. - answer✔✔Matter Matter consists of ________________ in pure form and in combinations called compounds. - answer✔✔Chemical elements Organisms are composed of _____________. - answer✔✔Matter _______________ is anything that takes up space and has mass. - answer✔✔Matter Matter is anything that takes up __________ and has _______. - answer✔✔Space; mass Matter is made up of ____________. - answer✔✔Elements An _________________ is a substance that cannot be broken down other substances by chemical reactions - answer✔✔Element A ___________________ is a substance consisting of two or more elements in a fixed ratio. - answer✔✔Compound T/F: A compound has charact eristics different from those of its elements - answer✔✔True An element's properties depend on the structure of its ______. - answer✔✔Atom An ____________ is the smallest unit of matter that still retains the properties of an element. - answer✔✔Atom Atoms can be broken down into smaller particles like ___________ (no charge), ______________ have a positive charge, and _____________ (negative). - answer✔✔Neutrons, protons, and electrons No electrical charge - answer✔✔Neutron Postive charge - answer✔✔Proton Negative charge - answer✔✔Electron _____________ and ___________ form from the atomic nucleus. - answer✔✔Neutrons and protons What do neutrons and protons form from? - answer✔✔Atomic nucleus ________________ form a "cloud" of negative charge around the nucl eus. - answer✔✔Electrons Electrons form a "_______" of negative charge around the nucleus. - answer✔✔Cloud Neutron mass and proton mass are almost identical and are measured in __________. - answer✔✔Daltons ____________ mass and _________ mass are almost i dentical and are measured in daltons. - answer✔✔Neutron and proton Atoms of the various elements differ in number of ________________. - answer✔✔Subatomic particles An element's atomic number is the number of ___________ in its nucleus. - answer✔✔Protons An element's _________________ is the number of protons in its nucleus. - answer✔✔Atomic number An element's ___________ is the sum of protons plus neutrons in the nucleus. - answer✔✔Mass number An element's mass number is the sum of _________ plus ________ _ in the nucleus. - answer✔✔Protons; neutrons _______________, the atom's total mass, can be approximated by the mass number. - answer✔✔Atomic mass All atoms of an element have the same number of __________ but may differ in number of _____________. - answ er✔✔Protons; neutrons ______________ are two atoms of an element that differ in number of neutrons. - answer✔✔Isotopes _______________________ decay spontaneously, giving off particles and energy. - answer✔✔Radioactive isotopes The electrons of an atom dif fer in their amounts of _______________. - answer✔✔Potential energy An electron state of potential energy is called its energy level, or _____________. - answer✔✔Electron shell
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