Science Exams Midterms Chapter 4
column
elements in the same _______ on the periodic table have the same number of valence electrons * column * row * column and row * period
cesium
which of the following has the largest atomic radius? * sodium * argon * cesium * radon
John Newlands
Who developed the law of octaves through arranging elements by atomic mass? * Antoine Lavoisier * Dmitri Mendeleev * Henry Moseley * Jacob Berzelius * Johann Doberenier * John Newlands * Robert Boyle
Jacob Berzelius
Who used letters to represent each element and superscripts to represent the number of atoms? * Antoine Lavoisier * Dmitri Mendeleev * Henry Moseley * Jacob Berzelius * Johann Doberenier * John Newlands * Robert Boyle
two
how many valence electrons do the alkaline-earth metals have? * one * two * six * seven
halogens
refer to a periodic table. what is the family name for the group containing chlorine? * alkaline-earth metals * halogens * mixed group * noble gases
all of the above
the development of the periodic table came as a result of * scientists attempting to arrange the information known to them * scientists recognizing the periodic nature of elements * scientists organizing the elements in a way that relates their position with the structure of the atoms themselves * all of the above
atomic number
the modern periodic table arranges elements according to _______ * atomic mass * atomic number * the law of octaves * triads
inner transition metal
uranium found below the main body of the periodic table, is best classified as an _________ * inner transition metal * metalloid * nonmetal * transition metal
metalloids
what contains brittle solids with metallic luster? * metalloids * metals * nonmetals
metals
what contains elements that are ductile, malleable, and lustrous? * metalloids * metals * nonmetals
metals
what elements are highly conductive and reactive? * metalloids * metals * nonmetals
metalloids
what elements are used as semiconductors? * metalloids * metals * nonmetals
metals
what elements include almost 80% of the elements? * metalloids * metals * nonmetals
nonmetals
what possess four to eight valence electrons? * metalloids * metals * nonmetals
to the right of the heavy stair step line
where are all the non metals found on the periodic table * to the left of the transitional metals * to the left of the heavy stair step line * along the heavy stair step line * to the right of the heavy stair step line
fluorine, nitrogen, carbon, lithium
which of the following correctly arranges the elements from greatest electronegativity to the least? * carbon, fluorine, lithium, nitrogen * fluorine, nitrogen, carbon, lithium * lithium, carbon, nitrogen, fluorine * nitrogen, fluorine, carbon, lithium
Antoine Lavoisier
who demonstrated that combustion requires the presence of oxygen? * Antoine Lavoisier * Dmitri Mendeleev * Henry Moseley * Jacob Berzelius * Johann Doberenier * John Newlands * Robert Boyle
Johann Dobereiner
who first recognized groups of three elements with similar properties? * Antoine Lavoisier * Dmitri Mendeleev * Henry Moseley * Jacob Berzelius * Johann Doberenier * John Newlands * Robert Boyle
Henry Moseley
who led to organizing the periodic table on the basis of atomic number? * Antoine Lavoisier * Dmitri Mendeleev * Henry Moseley * Jacob Berzelius * Johann Doberenier * John Newlands * Robert Boyle
Dmitri Mendeleev
who organized elements with similar characteristics in columns like the modern periodic table?
