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Mendeleev left gaps in his periodic table because
when chemical properties were repeated
brittle.
become less metallic.
ions.
can conduct heat and electricity under certain conditions.
no known elements fit there.
a higher atomic number.
valence electrons.
Atoms that gain or lose electrons are called
when chemical properties were repeated
brittle.
become less metallic.
ions.
can conduct heat and electricity under certain conditions.
no known elements fit there.
a higher atomic number.
valence electrons.
When did Mendeleev create a new row in his periodic table?
when chemical properties were repeated
brittle.
become less metallic.
ions.
can conduct heat and electricity under certain conditions.
no known elements fit there.
a higher atomic number.
valence electrons.
As you move from left to right across the periodic table, elements
when chemical properties were repeated
brittle.
become less metallic.
ions.
can conduct heat and electricity under certain conditions.
no known elements fit there.
a higher atomic number.
valence electrons.
As you move from up to down in a column of the periodic table, elements have
when chemical properties were repeated
brittle.
become less metallic.
ions.
can conduct heat and electricity under certain conditions.
no known elements fit there.
a higher atomic number.
valence electrons.
Most nonmetals are
when chemical properties were repeated
brittle.
become less metallic.
ions.
can conduct heat and electricity under certain conditions.
no known elements fit there.
a higher atomic number.
valence electrons.
Elements that belong to the same group have the same number of
when chemical properties were repeated
brittle.
become less metallic.
ions.
can conduct heat and electricity under certain conditions.
no known elements fit there.
a higher atomic number.
valence electrons.
Semiconductors are elements that
when chemical properties were repeated
brittle.
become less metallic.
ions.
can conduct heat and electricity under certain conditions.
no known elements fit there.
a higher atomic number.
valence electrons.
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