Answer: Bond enthalpy
Which diatomic has the strongest bond?
Correct answer:
Diatomic nitrogen , , contains a triple bond between the two nitrogen atoms. Since there are six electrons being shared, the bond is stronger and the atoms are being pulled closer together. Diatomic oxygen, , has a double bond, which is not as strong.
Is H2 bond strong?
Hydrogen bonds are strong intermolecular forces created when a hydrogen atom bonded to an electronegative atom approaches a nearby electronegative atom. ... The hydrogen bond is one of the strongest intermolecular attractions, but weaker than a covalent or an ionic bond.
How do you know which bond is stronger?
The length of the bond is determined by the number of bonded electrons (the bond order). The higher the bond order, the stronger the pull between the two atoms and the shorter the bond length . Generally, the length of the bond between two atoms is approximately the sum of the covalent radii of the two atoms.
Does N2 or O2 have a stronger bond?
There are two unpaired electrons in the 2pπ* orbitals, thus O2 is paramagnetic. Electron configuration — 2sσ2 2sσ*2 2pσ2 2pπ4 2pπ*1 There are 5 net bonding electrons (bond order of 2.5). Thus, the bond is stronger and shorter than in O2 . no unpaired electrons, so N2 is diamagnetic.
Why is N2 more stable than O2?
As bond order of nitrogen is more than that of oxygen, nitrogen is more stable than oxygen.
Which one is more stable H2 or O2 explain using MO theory?
O 2 + is more stable than O 2 – . Because According to molecular orbital theory O 2 + has 15 electrons &it has one electron in antibonding orbital. In the case of O 2 – 17 electrons are present &3 electrons are present in antibonding orbitals.
Why is FF weaker than Cl Cl?
F-F bond: This bond is a weak bond because the repulsion between the lone electron pairs of the two fluorine atoms is huge . ... Attraction of electrons towards each other: More the electrons are attracted, stronger is the bond formed. Hence, the strongest bond is the Cl-Cl bond.
Which diatomic has the longest bond length?
I2 has the largest bond length due to the following reasons: The size of iodine is largest.
Which bond is most polar?
The answer is b) N – H . The quick answer – right from the get-go, since nitrogen is one of the most electronegative elements in the periodic table, the bond it forms with hydrogen will be the most polar out of all those listed.
Is H2 a hydrogen bond?
H2 is not a hydrogen bond but is a molecule in which hydrogen is bonded to itself. H2 forms when two hydrogen atoms, H, are bonded together by a...
What is the strongest molecular force?
The strongest intermolecular force is hydrogen bonding , which is a particular subset of dipole-dipole interactions that occur when a hydrogen is in close proximity (bound to) a highly electronegative element (namely oxygen, nitrogen, or fluorine).
Which hydrogen bond is the strongest?
Fluorine is the most electronegative element (3.98 on the Pauling scale) and because of this fluorine forms some of the strongest hydrogen Page 3 bonds. For example, the hydrogen bond between HF and a fluoride ion (FH—F-) is calculated to be 40 kcal/mol in the gas phase.
Which is the most strongest bond?
In chemistry, covalent bond is the strongest bond. In such bonding, each of two atoms shares electrons that binds them together. For example, water molecules are bonded together where both hydrogen atoms and oxygen atoms share electrons to form a covalent bond.
Which bonds are the strongest and weakest?
The ranking from strongest to weakest bonds is: Covalent bond > ionic bond > hydrogen bond > Van der Waals forces . Complete answer: The order from strongest to weakest bonds is: Covalent bond > ionic bond > hydrogen bond >Van der Waals forces.
Which bond is longest?
The longest covalent bond I can find is the bismuth-iodine single bond . The order of bond lengths is single > double > triple. The largest atoms should form the longest covalent bonds. So we look at atoms in the lower right corner of the Periodic Table.
