In ammonium ion, electrons required between hydrogen ion and nitrogen ion are ________.
1
2
3
4
Answers
Answer:
2is the correct answer
Explanation:
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Answer:
Well, for each
N
−
H
bond there are TWO electrons....
Explanation:
Ammonium derives from the ammonia molecule....
N
H
3
...a NEUTRAL molecule. When we apportion electrons to atoms in a compound, we assume that the TWO electrons of a covalent bond are shared equally between the bound atoms, but that lone pairs, and negative charge is OWNED by the atom that bears the electrons. And thus nitrogen has
2
lone pairs
+
3
N-H bonds
+
2
inner core
=
7
⋅
electrons
. And so nitrogen is neutral, i.e.
Z
=
7
for
N
, and so is the ammonia molecule.
Now ammonia is a base...and we conceive that the lone pair donates to a proton....
H
+
+
:
N
H
3
→
H
−
+
N
H
3
We say that the nitrogen is quaternized in the ammonium ion ... its former lone pair is now involved in a covalent bond...nitrogen now owns
0
lone pairs
+
4
N-H bonds
+
2
inner core
=
6
⋅
electrons
...and thus the nitrogen now has a FORMAL POSITIVE CHARGE...in ammonium ion,
N
H
+
4
...each of the
N
−
H
bonds are equivalent. Do you follow?
We could go thru the same tedium to establish that the negative charge on hydroxide ion is oxygen-based...i.e. there are NINE electrons around oxygen in hydroxide...formally THREE lone pairs, ONE from the
O
−
H
, and two inner core, i.e. 9 electrons...and since there are 8 nuclear charges, the oxygen atom is anionic...
Explanation:
#Hope you have satisfied with this answer.