Chem Chapters 1-7, 25 Crossword
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
 
 
Down: 1) correct value based on reliable references2) negatively charged subatomic particles3) total number of protons and neutrons in an atom5) atom in this state when an electron has its lowest possible energy6) property that depends on amount of matter in a sample7) nonmetal in Group 7A of the periodic table10) procedure that is used to test a hypothesis11) 1/2 the distance between the nuclei of two atoms of the same element when atoms are joined12) different frequencies of colors shown when sunlight passes through a prism13) SI, basic unit of length, or linear measure15) materials properties change, but composition of material does not change (ex: melting)16) form of matter that has an indefinite shape, flows, yet has a fixed volume17) shows the kinds and numbers of atoms in the smallest representative unit of a substance18) number of ions of opposite charge that surround the ion in a crystal19) modern description of electrons in atoms22) value measured in the lab23) capacity to do work or to produce heat25) proposed explanation for an observation28) freezing point of water: 0 degrees C boiling point of water: 100 degrees C30) any atom of group of atoms with a negative charge31) measure of space occupied by object32) ratio of equivalent measurements33) matter that has a uniform and definite composition37) form of matter that has a definite shape and volume38) SI unit of volume39) amount of energy required to move an electron from one energy level to another energy level41) solid that forms and settle out of a liquid mixture45) objects that can only be seen under magnification49) basic SI unit of mass50) any atom or group of atoms with a positive charge51) element that tends to be a poor conductor of heat and electric current; generally has properties opposite to those of metals52) light quanta55) anything that has mass and occupies space56) each horizontal row of the periodic table59) mixtures composed of two or more elements, or at least one of which is metal Across: 4) study of chemicals containing carbon8) arrangement of elements in which elements are separated into groups based on a set of repeated properties9) quality or condition of a substance that can be observed or measured without changing the substance's composition14) states that electrons occupy orbitals of the same energy in a way that makes the number of electrons with the same spin direction as large as possible20) well-tested explanation for a broad set of observations21) mixture in which the composition is not uniform throughout24) used to describe any part of a sample with uniform composition and properties26) quantity of heat that raises the temperature of 1 g of pure water by 1 degree C27) hot-blooded Asian29) atom or group of atoms that has a positive or negative charge34) often thought of as a region of space in which there is a high probability of finding an electron35) form of matter that takes both shape and volume of its container36) one of a class of elements that are good conductors of heat and electric current; metals tend to be ductile, malleable, and shiny40) atoms that have the same number of protons but different numbers of neutrons42) number of wave cycles to pass a given point per unit time43) any metal in Group 2A of periodic table44) gaseous state of a substance that's generally a liquid/solid @ room temperature46) property that depends on the type of matter in a sample, not amount of matter47) name Marie Curie gave to the process by which materials give off rays emitted by uranium atoms48) occurs when nuclei combine to produce a nucleus of greater mass53) defined as 1/12 of the mass of a carbon-12 atom54) homogeneous mixture57) any metal in Group 1A of periodic table58) concise statement that summarizes the results of many observations and experiments60) mixture in which the composition is uniform throughout61) process that decreases the number of slow-moving neutrons62) measure of how hot or cold an object is63) positively charged subatomic particles64) consist of attraction of free-floating valence electrons for the positively charged metal ions65) variable that is observed during the experiment, dependent variable66) splitting of a nucleus into smaller fragments
 

 

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