Relier Pairs Semester 2 Science Final Online GameVersion en ligne Review game for semester 2 final. par Amanda Occhino 1 The modern periodic table is organized according to _______ . 2 A piece of paper will provide protection from _____radiation. 3 ___ are negatively charged particles in an atom. 4 An object’s weight is 1/6 on the moon as it is on earth. On the moon, the object’s mass ____ 5 The series of electron orbits in ’_____ model resemble planets orbiting the Sun or the layers of an onion. 6 The horizontal rows on the periodic table are known as _____ or _____ . 7 Another term for the ability to burn is _____ at temperatures below 37.8 ℃. 8 _____ energy naturally flows from warmer to cooler matter, this is what we know as heat or heat flow. 9 Both a pool of water and a piece of ice are the same___________, so they have the same ______. 10 Butter melting in a pan is a physical(_____) change where energy is ___. 11 An object that floats on water has a density ___ than 1-g/mL. 12 Fluorine, chlorine, bromine, and iodine are all part of the _____ family. 13 Nonmetals can be found on the _____ side of the periodic table. 14 The atomic nuclei of unstable isotopes release fast-moving particles and energy in a process called ______ . 15 An object that sinks in water has a density ____ than 1-g/mL. less flammability electrons right remains the same halogen substance,composition atomic number Bohrs alpha greater endothermic, absorbed radioactive decay periods, series Thermal 1 New substances are produced by a(n) __________change, while a(n) _____ change does not result in a new substance. 2 Iron rusting, silver tarnishing, fruit ripening, and combustion are all ____ properties. 3 Characteristics of matter are called_______. 4 One liter is equal to ____ milliliters. 5 Atoms with the same number of protons and different numbers of neutrons are called _____ . 6 One milliliter is equal to ______cubic centimeters. 7 ____ has mass and volume (takes up ____). 8 H2SO4 and H2SO3 ____ the same substance. 9 Glass breaking, ice melting, and the dissolution of sugar in water are all ____properties. 10 Four measurable physical properties of matter are _____, ____, ___, and ___. Of these, ___ and ____ are derived measurements and must be calculated. 11 Each element is given a specific ___ that usually consists of one or two letters. 12 Compounds are formed as a result of _____ during chemical reactions in a set ratio. 13 A column of elements on the periodic table is called a ____ or a ____ because they have similar _____ . 14 Salad dressing is an example of a _____ mixture. 15 Scientific theories often make use of __ , which are representations of an idea to help scientists understand what they cannot directly observe. Matter,space bonding physical chemical 1000 Are not isotopes heterogeneous symbol properties models 1 group, family, characteristic properties mass,volume,density,length, volume,density chemical, physical 1 The property of an element that indicates the number of protons in its atoms is the _______of that element. 2 Substances in a ___ keep their own properties since they are not chemically combined. 3 Solid, liquid, gas, plasma, quantum foam are the five _____ (states) of matter. 4 The chemical _____ for water is H2O and for hydrogen peroxide is H2O2. 5 The amount of space an object takes up is a measure of its _______. 6 The chemical reactivity of metals tends to ____ from left to right across the periodic table. 7 The ability of iron to rust is a(n) _____property. 8 The amount of matter in an object is a measure of its _____. 9 The ____ of an object is a measure of the thermal energy (motion of the particles) of a substance. 10 Is the study of matter and the changes in matter. 11 Salt water is an example of a ______mixture.(specifically a solution) 12 Elements that easily transmit electricity and heat display the property known as ______ . 13 Mendeleev discovered that periodic patterns appeared when he arranged the elements in order of increasing ______ . 14 The chemical ______ for tungsten is W, where Au stands for gold. 15 The spontaneous emission of radiation by an unstable atomic nucleus was named ______ by Marie Curie. homogeneous mixture conductivity phases radioactivity Mass atomic number temperature decrease atomic mass Volume symbol chemical Chemistry formula 1 The Law of Conservation of__states that in any physical/chemical change, matter is neither created or destroyed,only changed from one form to another. 2 A balloon filled with air does not rise as high as a balloon filled with helium gas, telling me that helium gas is _____ dense than air. 3 The physical property that makes metal pots good for cooking is ___ conductivity. 4 In 1869, Dmitri Mendeleev created the first version of the ______ . 5 The ___ is the very small center of an atom. 6 At room temperature, all the metalloids are solids, while many of the nonmetals are _____ . 7 The ratio of each type of atom in sulfuric acid, H2SO4, is _ hydrogen to _ sulfur to _ oxygen. 8 The mass per unit volume of an object is a measure of its __. 9 The mass of an object is constant, whereas the weight of the same object ___ depending on its location. 10 The SI unit for density is ___, but the common unit is ____. 11 Elements known as ____ are located to the right of the metalloids on the periodic table. 12 The form/appearance of a substance is altered during a _ change,where the actual chemical composition/ratio of atoms is altered during _ change. 13 The energy stored in bonds between atoms is chemical energy, a form of _____ energy. 14 Most metals are in the ___ state or phase at room temperature. 15 The metal tungsten is used in incandescent light bulbs because of its property of ___conductivity. nucleus solid physical,chemical changes gases 2,1,4 Thermal periodic table nonmetals potential Mass less kg/m3, g/cm3 electrical Density 1 Because radioactive isotopes decay at a predictable rate, the half-life can be used to tell how old a material is by the process of _________ . 2 When uranium-238 decays into lead-206,the difference between the mass of uranium & lead is _amu,while the difference between their atomic numbers is_. 3 Two ways a proton and a neutron are similar are they have the same ____ and are both located in the ____ . 4 When the atoms in elements combine to form compounds, their ___ change. 5 The substances in a ___ mixture are evenly distributed and you cannot see the parts. 6 The SI unit for weight is _______ 7 ______Is made out of atoms and can form molecules, or compounds 8 The mass of a(n) _____ is so small that it doesn’t really change the mass of an atom. 9 The SI unit for mass is _, but the common unit is _. 10 The common unit for volume is ________ 11 Atoms are neutral because they have equal numbers of _____ and _____ . 12 The substances in a ____ mixture can usually be seen and are easily separated. 13 The half-life of a radioactive isotope is the length of time needed for half of the atoms of a sample to _____ . 14 A mixture of iron and sulfur can be separated by 15 The SI unit for volume is _______. mass, nucleus kg,g Newton liters or cubic meter 32,10 Heterogeneous protons, electrons electron radioactive dating cubic centimeters or milliliter Homogeneous elements decay properties Magnet 1 A(n) ____ has a definite volume and a definite shape. 2 ____ metals react violently with water. 3 ________metals tend to be less reactive than the families to the left and right of them. 4 A(n) __ has neither a definite volume nor a definite shape. 5 An_particle is released when radium decays into radon, while a__particle is released when changing neutron into proton when lead decays into bismuth. 6 A special form of homogeneous mixture that is composed of evenly distributed solute particles in a solvent is called a(n) ________ 7 ___ is the inward force among the molecules of a liquid. 8 A state of matter with a definite volume, but no definite shape is a(n) ____. 9 The _____ is a measure of the average speed of the particles in a substance. 10 A(n)____will always take the shape and volume of its container. 11 Radioactive isotopes called _____ can be used to detect some medical problems. 12 The amount of space that matter fills is its ___ 13 ____is always released during any type of radioactive decay. 14 The __ of a gas is represented by the formula f/A, where f = force pushing on the walls of a container and A = area of the walls of the container. 15 _____is so unique that it could easily be placed in either group 1 or group 17. tracers hydrogen alkali gas Homogeneous Solution pressure gas transition solid surface tension Gamma radiation temperature liquid alpha, beta volume 1 The properties of solid metals can be explained by the ___ of and the bonding among the metal atoms. 2 Both gases and liquids are ____. 3 A substance is a single kind of matter that has a specific ________. 4 The process that makes ice cubes shrink as they sit in a freezer is called _____. 5 A(n) ___ solid has a definite melting point. 6 The process where bromine gas touches a surface and becomes crystals is called _____. 7 Particles of a _____ have the greatest thermal energy. 8 Orderly crystal shapes, high melting points, and electrical conductivity when dissolved in water are properties of _____compounds. 9 Glass is an example of a(n) _____ solid. 10 Freezing occurs when the particles of a liquid ___ enough energy to take fixed positions. 11 A(n) _____ solid has a melting point range. 12 The temperature at which a liquid turns to a gas is its ____. 13 Ionic compounds that dissolve in water conduct electricity because they break into _____ that move freely. 14 The element in group 18, period 4 is ___ and it would be a___at room temperature and would ____react with other elements. 15 Metalloids have properties of____ metals and nonmetals. gas lose amorphous both crystalline Composition fluids Deposition structure amorphous krypton, gas, not ionic ions sublimation boiling point 1 A nonpolar bond is formed when two atoms share electrons _____ . 2 ______ occurs at a specific temperature when a liquid becomes a gas beneath and on the surface of a substance. 3 Sublimation and _______ both happen at the surface of a substance. 4 When electrons are ____ between two atoms, a covalent bond is formed. 5 As a result of Rutherford’s gold foil experiment scientists inferred that an atom’s __ charge must be concentrated in the __ of the atom. 6 ____ occurs at any temperature when a liquid becomes a gas on the surface of a substance. 7 The overall charge on an atom is__ ; the overall charge on a compound is___ . 8 Water particles in gas coming off a pan of boiling water are moving ____than the particles of water in the pan. 9 _____&____ are both forms of vaporization. 10 When an atom loses an electron, it becomes a(n) ______ charged ____ . 11 Vaporization is the reverse process of _______. 12 ______ is the reverse process of freezing. 13 The temperature at which a liquid turns to a solid is called its ________. 14 A low melting point is one property of _____compounds. 15 A(n) _____ change (reaction) releases energy(gets warmer), while a(n) _____ change (reaction) absorbs energy(gets colder). shared freezing point evaporization covalent exothermic,endothermic melting condensation evaporization positive,nucleus positively, cation equally boiling and evaporization boiling faster 0, 0 1 Beta radiation consists of particles that are identical to ____ . 2 The elements that do not react to form compounds under normal conditions are the ____. 3 You can predict an element’s _____ based on its location on the periodic table. 4 The two most common alkaline earth metals are ___and __ 5 A(n)_______ is the smallest part of a substance. 6 Metals are ___,____ and can carry an ____. 7 Aluminum foil is an example of a metal that is _____. 8 Electrons involved in bonding between atoms are __ electrons located __ from the nucleus in the _ and _ sublevels that have a ___ charge. 9 Measurements of half-life make radioactive isotopes useful for determining the ages of ___and___. 10 At room temperature, more than half of the nonmetal elements are ___ . 11 Molecular compounds that dissolve in water do not conduct electricity because no ___ are present. 12 A _____ bond is when two pairs of electrons are shared between two atoms. 13 Mendeleev created the first periodic table by arranging elements in order of __ atomic __ . 14 A chemical bond formed when two atoms share electrons is called a(n) _______ . 15 The atomic number of an element is the number of __ in its ___ . protons,nucleus valence, farthest, s, p, negative increasing, mass covalent bond noble gases ions malleable,ductile,electric current malleable . electrons atom characteristics properties gases double rocks,fossils calcium,magnesium 1 In an atom, the number of ____ and ___ are equal. 2 An ionic bond is the attraction between______________charged ions. 3 Most elements on the periodic table are classified as ____ . 4 A material that is ___ can be pulled or drawn into a long wire. 5 The _____ is the number of protons in an atom. 6 Elements in the same row on the periodic table have ___ properties that change in a pattern. 7 Fluorine is a(n)_______ molecule because the valence electrons are shared equally between the two fluorine atoms. 8 _______ have properties of both metals and nonmetals. 9 ___ orbit the nucleus of an atom. 10 In the chemical formula for an ionic compound, the name of the ______ is written first. 11 The elements in the same column (or __ or __ ) on the periodic table have similar ______ . 12 A mixture made up of two or more elements, at least one of which is a metal is called a(n)____ . 13 The most reactive metals on the periodic table are found in group ___ , period ___ which are the ___ metals. 14 A(n) ______ is the smallest unit of matter that has the properties of its element. 15 Ions that are made of more than one type of atom are examples of ___________ . ductile element electrons group,family,characteristic properties protons,electrons alloy non polar covalent atomic number polyatomic ions periodic metalloids one,1-7, alkali metals metallic cation oppositely
