Katey Hale
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| Study of the composition and structure of materials undergoe best describes the science of... | chemistry
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| The branch of chemistry that is concerned with the identification and composition of materials is... | analytical
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| The branch of chemistry concerned with the properties, changes, and relationships between energy and matter is... | physical chemistry
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| A physical property may be investigated by... | melting ice
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| Two features that distinguish matter are... | mass and volume
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| Which of the folowing is an intensive physical property? | color
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| A physical change occurs when a... | glue gun melts a glue stick
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| The particles in a solid are | packed closely together
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| THe state of matter in which a material has definite shape and definite volume is the... | solid state
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| Physical means can be used to seperate... | mixtures
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| To calculate the density of an object... | divide its mass by its volume
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| In divison and mutiplication, the answer must not have more significant figures that the... | number in the calculation with fewest significant figures
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| A chang in the force of earths gravity on an object will affect its... | weight
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| The SI base unit for measuring length of an automobile is the... | meter
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| If some measurements agree closely but differ widely from the actual value, these measuresments are... | precise, but not accurate
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| A testable staement used for making predictions and carrying out further experiments is a... | hypothesis
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| Standards are chosen because they... | are reproducible in another labratory
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| Quantative observations are recorded using... | non-numerical information
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| The metric unit for length that is closest to the thickness of a dime is the... | millimeter
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| THe symbol that reprents the measured unit for volume is... | mL
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| Who was the school master who studied chemistry and proposed and atomic theory? | John Dalton
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| Organic chemcistry is the study of what? | carbon containing compounds
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| The smallest unit of an element that can exist alone or in combination with other such particles is an? | atom
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| The discovery of the electron resulted from experiments using... | cathode rays
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| All atoms of the same element have the same what? | atomic number
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| An aluminum isotope consits of 13 protons, 13 electrons, and 14 nuetrons. Its mass number is... | 27
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| Rutherford's experiments led to the discovery of the... | nucleus
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| What scientist discovered electrons? | J.J. Thompson
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| Which form of radiation has the greatest penetrating power? | Gamma Rays
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| Reactions that affect the nucleus of an atom are called what? | nuclear reactions
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| Which form of radiation has the greatest penetrating power? | Gamma Rays
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| THe atomic sublevel with the next highest energy after 4p is... | 5s
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| Reactions that affect the nucleus of an atom are called what? | nuclear reactions
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| Max PLanck proposed that a hot object radiated energy in small, specific amounts called... | hertz
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| The distance between two successive peaks on a wave is its what? | wavelength CH4
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| THe atomic sublevel with the next highest energy after 4p is... | 5s
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| Because excited hydrogen atoms always produce the same line-emisson spectrum, scientists concluded that hydrogen... | release photons of only certain energies
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| Max PLanck proposed that a hot object radiated energy in small, specific amounts called... | hertz
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| THe number of orbitals for the d sublevel is... | 5
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| A quantum of electromagnetic energy is called what? | photon
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| For electromagnetic radiation, c (the speed of light) equals... | Frequency times wavelength
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| How many periods are on the periodic table? | 7
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| A single orbital in the 3d level can hold how many electrons? | 2
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| A three dimensional region around a nucleus where an electron may be found is called a... | orbital
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| If electrons in an atom have the lowest possible energies, the atom is in the... | ground state
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| What are the radioactive elements with atomic numbers from 90 to 103 in the periodic table? | the actinides
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| Mendeleev noticed that properties of elements usually repeated at regular intervals when the elements were arranged in order of increasing what? | atomic mass
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| THe person whose work led to a periodic table based on increasing atomic number was... | Moseley
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| THe priciple that states that the pyhsical and chemical properties of the elements are periodic functions of thier atomic number is... | the period law
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| A horizontal row of blocks in the periodic table is called a... | period
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| A positive ion is known as a(n) | cation
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| A negative IOn is known as a(n) | anion
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| The energy required to remove an electron from an atom___________as you move left to right from potassium trhough iron | generally increases
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| Valence electrons are those... | in the highest energy levels
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| Within a group of elements(going down),as the atomic number increases the atomic radius... | increases
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| Atoms are _______ when they are combined. | more stable
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| A mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together is called a what? | chemical bond
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| Most chemical bonds are... | partly ionic and partly covalent
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| A neutral group of atoms held to gether by a covalent bond is a... | molecule
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| If the atoms that chare electrons have an unequal attraction for the electrons, the bond is called... | polar
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| The electron sea model of bonding represents... | metallic bonding
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| IF a material can be shaped or extended by physical pressure, such as hammering, which property does the material have? | malleability
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| The elements of the _________ group satisfy the octet rule without forming compounds. | noble gas
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| What principle states that atoms tend to form compounds so that each atom can have eight electrons in its outermost energy level? | octet rule
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| Malleability and ductility are characteristics of substances with... | metallic bonding
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Created by:
katey2011
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