Understanding the Periodic Table
The periodic table is a table of different known chemical elements which are positioned in order of their atomic number to make it easier to read. Each element is bunched together in categories such as noble gases, non-metallic and metallic elements. Most periodic tables separate these element by colour coding like the periodic table above shows how fluorine in a non-metal whereas neon is a noble gas. The periods (rows) of the table represent the number of shells each element has. For example the first row, with hydrogen and helium, only need one energy level or shell to hold their electrons. When moving down each row, it adds an energy level each time. The groups (columns) of the table represent the number of electrons in the each elements valence (outer) shell. For example the first column (when looking from left to right), has hydrogen and lithium and they both have one electron in their valence shell. Whereas, the thirteenth group (column) has boron which contains thirteen valence electrons.
Nickel on the Periodic Table
By knowing this, the way the table was constructed has made it very simple to gain some general knowledge about each element. Therefore it is easy to check that Nickel is placed in the fourth period which means it has four energy levels and in the category of transition metals. This can be seen in the periodic table at the top of the page. As seen on the periodic table, Nickel is a transition metal and as Cronstedt discovered it is white in colour.
The periodic table is a table of different known chemical elements which are positioned in order of their atomic number to make it easier to read. Each element is bunched together in categories such as noble gases, non-metallic and metallic elements. Most periodic tables separate these element by colour coding like the periodic table above shows how fluorine in a non-metal whereas neon is a noble gas. The periods (rows) of the table represent the number of shells each element has. For example the first row, with hydrogen and helium, only need one energy level or shell to hold their electrons. When moving down each row, it adds an energy level each time. The groups (columns) of the table represent the number of electrons in the each elements valence (outer) shell. For example the first column (when looking from left to right), has hydrogen and lithium and they both have one electron in their valence shell. Whereas, the thirteenth group (column) has boron which contains thirteen valence electrons.
Nickel on the Periodic Table
By knowing this, the way the table was constructed has made it very simple to gain some general knowledge about each element. Therefore it is easy to check that Nickel is placed in the fourth period which means it has four energy levels and in the category of transition metals. This can be seen in the periodic table at the top of the page. As seen on the periodic table, Nickel is a transition metal and as Cronstedt discovered it is white in colour.