In DNA, Adenine will always bond with its base pair Thymine. The base Guanine will only bond with its pair Cytosine. Commonly, these complentations can be confused with that of RNA (Ribonucleic acid) where the nitrogenous base Uracil replaces Thymine to pair with Adenine.
DNA strands are held together by hydrogen bonds that form between the nitrogen bases of both strands.
Attraction between ions is the cause.
It happens so that each nitrogen atom can have 8 electrons (an octet), which is a stable form. It results in a nitrogen triple bonded to another nitrogen, and then each nitrogen has a lone pair of electrons. :N triple bond N:
There are four nitrogen bases in DNA nucleotides: adenine (A), cytosine (C), guanine (G), and thymine (T). Each nucleotide contains one of these nitrogen bases.
NO2 has a resonance structure, in which the nitrogen atom forms a double bond with one oxygen atom and a single bond with the other oxygen atom. This results in a bond type that is an average of a single and a half bond, making it a "one and a half" bond type.
Adenine and Thymine together and cytosine and guanine together.
In a molecule of nitrogen (N2), the nitrogen atoms are bonded to each other by a triple covalent bond. This means that each nitrogen atom shares three pairs of electrons with the other nitrogen atom, creating a strong bond between them.
hydrogen bonds
DNA strands are held together by hydrogen bonds that form between the nitrogen bases of both strands.
:N:::N: triple bond
A nitrogen molecule contains two nitrogen atoms which are bonded to each other through a covalent triple bond.
Describe how each of the DNA nitrogen bases pair together
A triple covalent bond holds the two nitrogen atoms together in a molecule of nitrogen gas (N2). Each nitrogen atom contributes three of its valence electrons to share with the other nitrogen atom, resulting in a very stable bond due to the multiple shared electrons.
hydrogen bond
Aluminum and nitrogen form an ionic bond. Aluminum donates electrons to nitrogen, resulting in the formation of positively charged aluminum ions and negatively charged nitrogen ions that attract each other to form a stable compound.
Guanine and Cytosine pair with each other and Adenine and Thymine pair with each other.
N2 because each nitrogen atom is three-valenced when covalently bonded in diatomic N2.