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Transcript
The Periodic Table
Fill in the blanks with words from the box.
atom
gold
nonmetals
atomic number
inert
periodic
column
Mendeleev
properties
element
metals
symbol
All matter is composed of various elements. An
_________________ is a form of matter that is
composed of a single type of _________________. In
1869, Dmitri _________________ created the
Calcium: an element on
the periodic table with
atomic number 20.
_________________ table to group the elements.
Periodic tables usually show the element name, the element
_________________, and the atomic number.
As you go across a row from left to right, the _________________ of the
element increases. The atomic number is the same as the number of protons in the
nucleus of an atom. As well, elements that have similar _________________
are placed in the same _________________. For example, copper, silver, and
_________________ all have similar properties and are all placed in column
eleven of the periodic table. Elements on the left side of the table tend to have
properties of _________________ and elements on the right side of the table
tend to have properties of _________________. Elements in column 18, the
last column on the left, are _________________ gases, which are gases that
generally do not react with other elements.
Neon is one of the inert gases, which
are located in column 18 of the periodic
table. Inert gases do not normally react
with other elements.