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I answer the questions.
Based on the information in the passage, why did
Mendeleev leave empty spaces in the periodic
table?
eriodic Table" f
A Mendeleev overlooked important
information.
Mendeleev allowed for the discovery of
future elements.
Mendeleev made errors that were
corrected later.
Family today. It may consist of
who are your parents or
more siblings. You may have an
ng one or more grandparents,
ins. All of you share a family
mare certain characteristics.
u that you look, walk, or talk
er, grandmother or
even have a family member
nealogy and who has
history, including a chart
you have seen such a tree,
represents a person, and
the tree are more closely
D Mendeleev believed no such elements
existed.