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Chemistry GEE Quiz 1
Vocabulary
| Question | Answer |
|---|---|
| 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
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