Question

order of melting and boiling point of 15 block elements​

Answer 1

Answer:

The melting point of group 15 elements increases up to arsenic and then decreases up to bismuth. The boiling point increases from nitrogen to bismuth

Answer 2

Explanation:

atomic radius is indirectly proportional to melting point and boiling point... therefore if atomic radius increases, melting point and boing point decreases... and note that atomic radius increases across a group and decreases across a period

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