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Chemistry GEE Quiz 1


What is a group of one or more element(s)? Compound / molecule
What is the simplest form of matter where all atoms of one element are alike and have the same number of protons? Element
What is the smallest particle of an element that still retains all the properties of that element? Atom
What is the subatomic particle that exists in the nucleus of an atom and has a positive charge? Proton
What is a subatomic particle that exists in the nucleus of an atom and does not have an electrical charge? Neutron
What is a subatomic particle that "encircles" the nucleus of the atom and has a negative electric charge? Electron
What makes up subatomic particles? Quark
What is an atom or a molecule that has either gained or lost electrons? Ion
What is any atom of an element that has the same number of protons but a different number of neutrons? Isotope
What are the three basic types of radioactive decay? Alpha radiation, beta radiation, and gamma radiation
What type of radiatin has a +2 charge and a mass of 4 amu, is the equivalent of a helium nucleus, is the weakest form of radiantion and can be stopped by paper? Alpha radiation
What type of radioactive decay has a -1 charge, virtually no mass, is the equivalent to a high speed electron, and can be stopped by heaving clothing? Beta radiation
What type of radioactive decay is a high energy radiation with no mass or charge, is stronger that X-ray radiation, and can be stopped by lead? Gamma radiation
What are atoms of elements whose nuclei are unstable and break apart? Radioactive isotopes
What involves the splitting of an atom's nucleus in two atoms of approximately equal sides and creates harmful byproducts? Fission
What involves the combination of two small atoms into a single, larger atom? Fusion
Metals tend to give up electrons to nonmetals to form Ionic compounds
Molecules of nonmetals come together in a Covalent bond
What is a pure substance composed of at least two different types of elements that are chemically combined and can only be separated by a chemical reaction? Compound
What is a substance that is composed of two or more different things, and can be separtated by physical means? Mixture
What is located on the left side of the periodic table? Metals
What is located on the right of the periodic table? Nonmetals
What is located on the "stairway" of the periodic table? Semimetals / metalliods
What is corrosive in nature and has a pH of 0-7? Acid
What can burn flesh, has a pH of 7-14, and their chemical formulas almost always end in OH? Base
What is the law that states that the total mass of all reactants should equal the totals of all the products in the same reaction? Law of Conservation of Matter
What are affected by tempurature within the system? Reaction rates
What changes the activation energy before or during a reaction by speeding it up? Catalyst
What are two chemical reactions that are vital to life? Photosynthesis and cellular respiration
What changes inside and outside cells and in response to the amounts of various ions or other present? Osmotic pressure
Created by: jacyguidry