Shanxian Chemical
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Nitrogen Hydrogen Polar Nonpolar
On the polarity of nitrogen and hydrogen
The combination of nitrogen (Nitrogen) and hydrogen (Hydrogen), the polarity of its molecules or not, is the essence of real chemistry. To understand this principle, we should study the properties of atoms and the structure of molecules.
Nitrogen has a high electronegativity, is an active genus among elements, and has a strong power to attract electrons. For hydrogen, the electronegativity is weaker than that of nitrogen. When the two combine, when bonding, the electron cloud is biased towards the nitrogen atom with strong electronegativity.
Taking ammonia ($NH_3 $) as an example, nitrogen is in the center and hydrogen surrounds it. Nitrogen and hydrogen bond, and the electron pair is biased towards nitrogen, causing the nitrogen terminal to be slightly negative and the hydrogen terminal to be slightly positive. This state of uneven charge distribution is a sign of polar molecules. Therefore, ammonia molecules are polar molecules because they have obvious positive and negative charge centers.
However, when looking at hydrogen molecules ($H_2 $), the two hydrogen atoms have the same electronegativity. When bonding, the electron cloud is evenly distributed, and there is no charge bias. The positive and negative charge centers coincide. This is a non-polar molecule.
If nitrogen ($N_2 $), the two nitrogen atoms are connected by three bonds, and the electronegativity is the same, and the electron cloud is also uniform, it is also a non-polar molecule.
In summary, the molecule formed by the combination of nitrogen and hydrogen is either polar or non-polar, depending on its specific structure and the difference in atomic electronegativity. When we analyze it in detail, we can understand its principles and gain a lot in the way of chemistry.
The combination of nitrogen (Nitrogen) and hydrogen (Hydrogen), the polarity of its molecules or not, is the essence of real chemistry. To understand this principle, we should study the properties of atoms and the structure of molecules.
Nitrogen has a high electronegativity, is an active genus among elements, and has a strong power to attract electrons. For hydrogen, the electronegativity is weaker than that of nitrogen. When the two combine, when bonding, the electron cloud is biased towards the nitrogen atom with strong electronegativity.
Taking ammonia ($NH_3 $) as an example, nitrogen is in the center and hydrogen surrounds it. Nitrogen and hydrogen bond, and the electron pair is biased towards nitrogen, causing the nitrogen terminal to be slightly negative and the hydrogen terminal to be slightly positive. This state of uneven charge distribution is a sign of polar molecules. Therefore, ammonia molecules are polar molecules because they have obvious positive and negative charge centers.
However, when looking at hydrogen molecules ($H_2 $), the two hydrogen atoms have the same electronegativity. When bonding, the electron cloud is evenly distributed, and there is no charge bias. The positive and negative charge centers coincide. This is a non-polar molecule.
If nitrogen ($N_2 $), the two nitrogen atoms are connected by three bonds, and the electronegativity is the same, and the electron cloud is also uniform, it is also a non-polar molecule.
In summary, the molecule formed by the combination of nitrogen and hydrogen is either polar or non-polar, depending on its specific structure and the difference in atomic electronegativity. When we analyze it in detail, we can understand its principles and gain a lot in the way of chemistry.
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