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Why Does Magnesium Have A Higher Melting Point Than Magnesium?
Magnesium has a higher melting point because magnesium ions are Mg2+, while sodium is Na+. Magnesium ions have a higher positive charge, so the attraction to the delocalized electrons is greater.
Why Does Magnesium Have A Lower Melting Point Than Aluminium?
Magnesium and Aluminium cations are also larger, although it does not have a lower price. This is why the metallic bond’s strength in Na is lower than in Mg and Al, and therefore the melting point is smaller.
Why Magnesium Has Low Melting And Boiling Point?
Although magnesium’s metallic bond is stronger than calcium, magnesium atoms are thinly packed in comparison to calcium. Hence, less energy is required to crack the metallic bond in magnesium, which results in a lower melting point than calcium.
Why Is Manganese Melting Point Low?
Manganese’s d-orbital has 5 electrons. This is a half-filled stable configuration. These electrons are therefore not able to participate in metallic bonding. Manganese has less heat and therefore its melting point is also low.
Why Is Aluminium Melting Point Higher Than Magnesium?
The more atoms are attracting, the more difficult it is to crack those intramolecular bonds, so the melting point is higher.