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65 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What term refers to a vertical column of elements on the periodic table?
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group
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Find the element in group 18, period 1. In what block of the periodic table is that element located?
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BLOCK: s
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The lanthanides are found in what peirod?
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6
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any atom or group of atoms with a negative charge
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anion
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What group of elements has the highest ionization energies?
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noble gases
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one-half the distance between the nuclei of two atoms of the same element in a molecule.
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atomic radius
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What term refers to the ability to be "pounded into thin sheets"?
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malleable
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What is the element in group 15, period 2 classified as? Your choices are: noble gas, representative element, transition element or inner transition metal
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represerntative element
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any atom or group of atoms with a positive charge
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cation
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What is the only nonmetal found on the left side of the periodic table?
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hydrogen
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What is the short-cut electron configuration of the element in group 17, period 2?
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[He] 2s(2) 2p(5)
electrons are in ( ) because program does have superscript font |
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the ability of an atom to attract electrons when the atom is in a compound;
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electronegativity
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What term refers to " the energy needed to remove an electron from an atom"?
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ionization energy
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How does the trend of ionization energy compare to the trend of atomic radii?
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the two trends are opposite
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an element in the lanthanide or actinide series; the highest occupied s sublevel and nearby f sublevel of its atoms generally contain electrons
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inner transition metal
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What is the A group number of group 15 of the periodic table?
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5A
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an atom or group of atoms that has a positive or negative charge
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ion
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How many periods are on the peirodic table?`
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7
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Name three of the metalloids (semimetals)?
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boron, silicon,aresenic, tellurium,asatine, germanium and antimony
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What is the group name for the metals in group 1A?
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alkali metals
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What is the noble gas in period 3?
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Argon
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Noble gas
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a class of elements that are good conductors of heat and electric current; these tend to be ductile, malleable and shiny
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metals
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What is the group name for the elements in group 2A?
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alkaline earth metals
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Type of element in which the s and p sublevels of the highest occupied energy level are completely filled
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noble gas
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Helium is one of these, but it is exempt from the rules stated here since it only has two electrons.
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What is the group name for the elements in group 7A?
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halogens
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an element that tends to be a poor conductor of heat and electric current; generally has properties opposite to those of metals
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nonmetal
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What is the last electron to fill an orbital in vanadium?
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the 3d(3)
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Which "A group" may be referred to as the oxygen group?
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6A
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when the elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties
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periodic law
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Why does atomic radii decrease moving left to right across a period?
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There is a constant number of energy levels in a period. But, elements to the right have a stronger nuclear charge.
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an element in the A group in the periodic table; as a group these elements display a wide range of physical and chemical properties. In their atoms, the s and p sublevels in the highest occupied energy level are partially filled
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representative element
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What is the name of the types of elements that have electrons entering the d orbitals?
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transition metals
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one of the Group B elements in which the highest occupied s sublevel and a nearby d sublevel generally contain electrons
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transition metal
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What do all the elements within the same peirod have in common?
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The highest energy level is the same.
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What element is in period 3, group 14?
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silicon
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How did Mendeleev arrange the elements on the periodic table?
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Elements with siimilar properties were in same column. Also, elements were ordered in increasing ATOMIC MASS.
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How many elements are in period 1?
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2
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What scientist is credited with arranging the elements in their current arrangement of increasing atomic #?
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Henry Moseley
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What evidence helped to prove that the peirodic table was valid?
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Mendeleev left blank spaces in the periodic table and predicted properties of future elements.
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Name one of the discovered elements for which Mendeleev predicted the properties.
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germanium, gallium
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About what percentage of elements can be classified as metals?
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80%
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What does it mean to say metals are ductile?
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they can be drawn into wire
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Name two elements that have similar properties to calcium.
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(name any group 2 element) beryllium, magnesium, strontium, barium, or radium
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Which of the following elements is a representative element?
Iron (Fe), aluminum (Al)j or La(lanthanum) |
aluminum (all elements in the A groups 1-7)
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Do metals, nonmetals or metalloids generally have the highest ionization energies?
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nonmetals
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Why do the elements nitrogen and phosphorus have similar chemical properties?
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They have similar electron configurations.
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How many occupied energy levels are there in an atom of tin (Sn )?
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5 ( this is why tin is located in period 5)
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What element is period 6, group 8?
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Osmium
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What element is in group 1B, period 6?
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Gold
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What element is a representative metal in group 5A?
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bismuth
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What metal is NOT a solid at room temperature?
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mercury
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Order these elements in order of decreasing atomic size: S, Cl, Na, Al
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Na, Al, S, Cl
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List all the elements whose electron configurations end in
"ns(2) p(1). n= energy level |
all elements in group 3A (B, Al, Ga, In, Tl)
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Which type of element would have the higher IE within the same period?
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nonmetals (they are to the right on the PT)
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What two series make up the inner transition metals?
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lanthanides and actinides
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What is the transition metal with the fewest protons?
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scandium
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When Ca and O pair chemically, which of the elements will have the greater attraction for electrons?
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O--because it has the higher electronegativity
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Name 3 properties that exhibit periodic trends?
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atomic radius, ionization energy, electronegativity, metallic character
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Arrange Mg, Be and Sr in order of increasing IE.
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Sr, Mg, Be
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What type of ionization energies will large atoms tend to have? (small or large)
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small
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Write the shortcut electron config. for the noble gas in period 3.
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[Ne] 3s(2) 3p(6)
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Which alkaline earth metal will have the greatest number of occupied energy levels?
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radium
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What noble gas is not in the p block of the periodic table?
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helium
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How must elements be arranged to comply within the periodic law?
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in order of increasing atomic number
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What is formed when two elements chemically combine?
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compound
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