The Periodic Table of the Elements
1. Elements are ______ substances which cannot be ________ down. Everything
on _________ is made up of ____________.
2. Some examples of elements are ___________, ____________, __________.
3. The _________ table of the _________ is a list of all the elements on Earth
________ into groups.
4. The periodic table was invented by a Russian, _________ ____________in 1869.
5. The elements are arranged according to different ________. Mendeleev
originally arranged them according to their atomic _________, but the modern
periodic table is arranged according to atomic __________.
6. The periodic table is divided into 18 columns called ________ and 7 rows called
________.
7. There are 3 main categories in the periodic table. ________ are found on the
______ side. __________ are found on the ______ side, and ________ or
metalloids are found in between the metals and non-metals.
8. Currently there are _____ known elements.
9. The only 2 elements on the periodic table that are in liquid state at room
temperature are __________ and __________.
10.Every cell in the periodic table has lots of useful _________ about the element.
In the _____ left corner is the _______ ________. The large letters in the middle
of the cell is the element _________ and at the bottom of the cell is the atomic
_______ or atomic mass.
The Periodic Table of the
Elements- Memo
1. Elements are pure substances which cannot be broken down. Everything
on Earth is made up of elements.
2. Some examples of elements are oxygen, hydrogen, iron, calcium, gold, etc.
3. The periodic table of the elements is a list of all the elements on Earth arranged
into groups.
4. The periodic table was invented by a Russian, Dimitri Mendeleev in 1869.
5. The elements are arranged according to different properties. Mendeleev
originally arranged them according to their atomic weight, but the modern
periodic table is arranged according to atomic number
6. The periodic table is divided into 18 columns called groups and 7 rows called
periods.
7. There are 3 main categories in the periodic table. Metals, are found on the left
side. Non-metals are found on the right side, and semi-metals or metalloids are
found in between the metals and non-metals.
8. Currently there are 118 known elements.
9. The only 2 elements on the periodic table that are in liquid state at room
temperature are bromine and mercury.
10.Every cell in the periodic table has lots of useful information about the element.
In the top left corner is the atomic number. The large letters in the middle of the
cell is the element symbol and at the bottom of the cell is the atomic weight or
atomic mass.