Question

Iron is a transition element. transition elements that make them different from non-transition metals

such as magnesium.​

Answer 1

Transition metals, such as iron, can form ions with variable charges and have partially filled d orbitals which allow for diverse chemical behaviors. They are widely used in everyday life and industrial applications, significantly differing from non-transition metals like magnesium.

Step-by-step explanation:

Transition metals like iron exhibit different properties compared to non-transition metals such as magnesium. One of the key differences is the ability of transition metals to form ions with variable charges. For example, iron can lose electrons to form Fe²⁺ or Fe³⁺ ions, whereas a metal like magnesium typically forms a consistent Mg²⁺ ion. Transition metals have partially filled d orbitals, which allows them to exhibit complex behaviors not seen in other elements that strictly follow the octet rule.

Transition metals are integral to many daily items and are essential in industries - from construction materials to the hemoglobin in our blood that helps transport oxygen. Iron, in particular, is found in various forms and has been used since ancient times, even before the widespread technology to smelt it from its ores was developed. These metals are versatile, forming alloys and coordination compounds, thanks to their variable oxidation states and ability to accept electron pairs.

Answer 2

Transition metals differ from the non-transition metals such as magnesium in the following ways;

• They have variable oxidation states
• Formation of complex ions.
• Formation of colored ions.
• Transition metals both in the elemental and compound forms can serve as catalysts.

Step-by-step explanation:

Transition elements comprise of those elements in the d-block of the periodic table and which have incompletely-filled d-orbitals.

The transition elements are all metals and has the characteristic physical properties of metals such as;

• high melting and boiling points,
• good conductors of heat and electricity,
• metallic luster
• high densities
• malleability and ductility

However, their chemical properties differ from those of the non-transition metals such as magnesium in the following ways;

1. They have variable oxidation states - the transition metals exhibit variability in their oxidation states because of the close similarity in the energies of the 4s and 3d electrons which are available for bond formation. For example, while magnesium has only one oxidation state of +2, vanadium a transition metal can have oxidation states of +2, +3, +4 and +5.
2. Formation of complex ions - A complex ion consists of a central metal atom or ion to which several other atoms, ions or molecules are bonded. For example, blue tetramine copper (ii) ion, [Cu(NH₃)]²⁺.
3. Formation of colored ions - unlike non-transition metal ions, the ions of transition metals are usually colored. For example, Copper (ii) ions, Cu⁺ are blue, Chromium (ii) ions, Cr³⁺, are green, etc.
4. Transition metals both in the elemental and compound forms can serve as catalysts. For example, finely divide nickel serves as a catalyst in the hydrogenation of vegetable oil to margarine, while vanadium (v) oxide serves as a catalyst in the contact process for the manufacture of tetraoxosulfate (i) acid.