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Why is the melting temperature of Magnesium higher than that of Sodium?

More energy is required to break the metallic bonds in Magnesium, because: -Magnesium ions have a smaller ionic radius than Sodium ions so Magnesium is more closely packed -Mg2+ ions have a greater charge de...
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Answered by Evelyn M. • Chemistry tutor
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Why are Amines more basic than Amides?

The lone pair of electrons on the amine are more available to accept a proton and act as a base. This is because in amides, the carbonyl (C=O) group is highly electronegative, so has a greater power to draw ...
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Answered by Kaylan P. • Chemistry tutor
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Define Electronegativity

It is the TENDANCY of an atom to attract a PAIR of electrons in a COVALENT bond.
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Answered by Oscar W. • Chemistry tutor
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What is ionic bonding? Give an example

A bond formed between a metal atom and a non-metal atom in which electrons are transferred from the metal atom to the non-metal atom, forming ions. If an atom loses an electron, it becomes positively charged...
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Answered by Safia A. • Chemistry tutor
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What is the overall charge of the nucleus of an atom, and why?

Positive. The neutrons found in the nucleus have a neutral charge, however the protons are positively charged. Therefore the overall charge is positive.
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Answered by Safia A. • Chemistry tutor
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