Chapter 6 chemistry
Terms in this set (19)
when elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties
good conductors of heat and electricity, ductile, malleable, high luster
poor conductors of heat and electricity, brittle
how did chemists begin the process of organizing elements?
chemists used the properties of elements to sort them into groups
what property did Mendeleev use to organize his periodic table?
Mendeleev arranged the elements in his periodic table in order of increasing atomic mass
how are elements arranged in the modern periodic table?
in the modern periodic table, elements are arranged in order of increasing atomic number
name the three broad classes of elements.
three classes of elements are metals, nonmetals, and metalloids
alkaline earth metals
they display a wide range of physical and chemical properties
characterized by the presence of electrons in the d orbital
inner transition metal
characterized by the presence of electrons in the f orbital
what information can be included in a periodic table?
the periodic table displays the symbols and names of the elements, along with information about the structure of their atoms
into what four classes can elements be sorted based on their electron configurations?
elements can be sorted into noble gases, representative elements, transition metals, or inner transition metals based on their electron configurations
how does atomic size change within groups and across periods?
atomic size increases from top to bottom within a group and decreases from left to right across a period
an ion with a positive charge
ion with a negative charge
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