Question

Lithium nitride has a high melting point of 813C and Nitrogen trifluoride has a
low melting point of -207C. why?

Answer 1

because lithium nitride is least reactive than nitrogen

hope it will helpfull for you

Answer 2

Answer:

Lithium Nitride is an ionic compound with strong electrostatic forces of attraction between the ions which require lots of heat energy to break whereas Nitrogen Trifluoride has weak intermolecular forces.

What is Lithium Nitride ?

Lithium nitride is a chemical having the formula Li3N. It is the only stable alkali metal nitride. The solid has a reddish-pink hue and a high melting point. It contains lithium and nitride ions.

What is Nitrogen Trifluoride?

Nitrogen trifluoride is a colourless, poisonous, inorganic gas with a somewhat musty odour. It is increasingly being used in the production of flat-panel displays, photovoltaics, LEDs, and other microelectronics. Nitrogen trifluoride is also a potent and long-lasting greenhouse gas.

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