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| Elements are arranged in order of _______. (Mendeleev's periodic table) |
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| A repeating pattern is reffered to as _____. |
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| Mosely discovered that if elements were placed in order of increasing _____, the periodic table fit into patterns better. |
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| The _________ states that the physical and chemical properties of the elements are periodic funtions of their atomic #s. |
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| The ________ is an arrangement of the elements in order of their atomic #s so that elements with similar properties fall in the same group. |
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| Ramsy discovered group 18 which are know as the ____. |
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| Why were noble gases discovered later than other groups? |
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| lack of chemical reactivity |
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| The ________ ate the 14 elements from atomuc numbers 58 to 71. |
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| The ______ are the 14 elements from atomic #s 90 to 103. |
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| The elements in group 2 are called the _____. |
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| The elements in group 1 are the ____. |
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| The s and p block elements are called the _____. |
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| The p block includes all _______. |
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| The _______ are located along the stair step lines. |
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| The elements of group 17 are called the ____. |
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| The ______ elements are the lanthanides and actinides. |
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| The _______ is defined as one-half the distince between the nuclei of identical atoms that are bonded together. |
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| Atomic radius _________ across a period because of increasing positive charges of the nucleus. |
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| The atomic radii of the main-group elements _________ down a group. |
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| An ______ is an atom or group of bonded atoms that has a + or a - charge. |
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| The energy required to remove one electron from a neutral atom of an alement is the __________. |
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| Ionization energies of the main group elements _____ across each period. |
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| In general, ______ have higher ionization energy than _____. |
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| What group has the highest ionization energy? |
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| What group has the lowest ionization energy? |
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| Ionizations usually ____ down the groups. |
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| The energy change that occurs when an electron when an electron is acquired by a neutral atom is called the atoms's _______. |
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| As electrons add to the same p sublevel of atoms with increasing nuclear charge, electron affinities become more _______. |
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| Electron affinity _______ as you move down a group. |
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| Second electron affinities area always ____. |
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| A positive ion is calledd a ______. |
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| The formation of a cation occurs when an atom _______ 1 or more electrons. |
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| A negitive ion is known as an ________. |
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| The formation of an anion occurs when an atom _____ 1 or more electrons. |
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| Cationic radii (metals) _____ across a period. |
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| Anionic radii (nonmetals) _________ across a period. |
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| Ionic radii ____ down a group. |
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| The electrons availible to be lost, gained or shared,in the formation of a chemical compounds are _____. |
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| ________ is a measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound. |
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| The most electronegative element is _____. |
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| The least electronegative elements are _______ and ________. |
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| Electronegatives _______ across a period. |
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| Electronegative elements ____ down a group. |
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| The atomic radii of the d-block elements usually _____ across the periods. |
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| Ionization energies of the d-block and f-block generally ______ down each group. |
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| The d-block elements also follow the general trend for electro negativity values to ______ as radii decrease. |
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