Question

Lithium is present in group 1 and nitrogen is present in group 15 in the modern periodic table. They react together to form an ionic compound, lithium nitride. What happens to the electrons when lithium and nitrogen form ions?


Lithium = Each lithium atom loses one electron to form Li+ ion;Nitrogen = Each nitrogen atom gains three electrons to form N3- ion
Lithium = Each lithium atom loses one electron to form Li+ ion;Nitrogen = Each nitrogen atom gain five electrons to form N-5 ion
Lithium = Each lithium atom gain one electron to form Li-1 ion;Nitrogen = Each nitrogen atom loses three electrons to form N3+ ion
Lithium = Each lithium atom gain one electron to form Li-1 ion;Nitrogen = Each nitrogen atom loses five electrons to form N+5 ion

Answer 1

Answer:

each lithium atom loses an electron to form li+ and each nitrogen gains 3 electron to form N3- , there's 3 Li+ per nitrogen atom

Answer 2

Lithium = Each lithium atom loses one electron to form Li+ ion; Nitrogen = Each nitrogen atom gains three electrons to form N3- ion

• Lithium or Li and Nitrogen or N combined to give lithium nitride. The reaction is-
• $3Li+N\rightarrow Li_3N$
• Li has one valance electron in its outermost shell.
• So, Li removes one electron and convert it to $Li^+$ ion.
• N has three valance electrons in its valance shell. So, to get stability N accepts electrons from Li and convert to $N^{-3}$ ion.