Download Periodic Table cloze activity.

CLIL – SCIENZE
Periodic Table cloze activity.
Fill in the blanks with words from the box.
atom, atomic number, column, element, gold, inert, Mendeleev,
metals, nonmetals, periodic, properties, 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 _________________ 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.
1. Why do Li, Na, K, Rb, Cs, and Fr all react with Cl in a 1:1 ratio forming sub-stances with
similar properties?
2. Explain the method that John Newlands used to organize the elements.
3. What method did Dmitri Mendeleev use to arrange his periodic table?
4. Why did Mendeleev have gaps in his table? How did he use these gaps?
5. What was Henry Moseley’s contribution to the periodic table?
6. Explain the importance of valence electrons.
7. How is the electron configuration similar for each element in a group?
8. How is the electron configuration similar for each element in a period?
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