What is the reason that chemists chatagories Fe,Co and Ni in the same group VIIIB?
Chemists categorize iron (Fe), cobalt (Co), and nickel (Ni) in the same group (VIIIB) on the periodic table for several reasons. The grouping of elements on the periodic table is based on their similar chemical and physical properties. Here's how you can understand why Fe, Co, and Ni are grouped together:
1. Locate the Periodic Table: You can find a periodic table easily by performing a quick search on the internet.
2. Find Iron (Fe): Locate the symbol "Fe" on the periodic table. You'll find it in the fourth row (Period 4) and the eighth column from the left (Group VIIIB).
3. Find Cobalt (Co): Next, find the symbol "Co" on the periodic table. It is also located in the fourth row (Period 4) and the eighth column from the left (Group VIIIB).
4. Find Nickel (Ni): Finally, find the symbol "Ni" on the periodic table. Like Fe and Co, it is situated in the fourth row (Period 4) and the eighth column from the left (Group VIIIB).
Now let's delve into why Fe, Co, and Ni are grouped together:
1. Similar Electron Configuration: Iron (Fe), cobalt (Co), and nickel (Ni) all have similar electron configurations. They all have a partially filled d-orbital with a similar number of valence electrons, which leads to similar chemical behavior.
2. Transition Metals: Fe, Co, and Ni are transition metals, meaning they exhibit variable oxidation states and form stable complex ions due to their partially filled d-orbitals. This characteristic is a key reason for grouping them together.
3. Similar Physical Properties: These three elements also share similar physical properties. For instance, they are somewhat hard, have high melting and boiling points, and can form alloys with other metals.
4. Magnetic Properties: Fe, Co, and Ni are all ferromagnetic, meaning they can be magnetized. Their magnetic properties are due to their partially filled d-orbitals, which allow for spin interactions.
By considering these factors, chemists have classified Fe, Co, and Ni in the same group (VIIIB) on the periodic table. Remember, the periodic table is a vast and comprehensive tool, providing organized information about the elements and their relationships based on various properties.