How many molecular orbitals will have an N value of 2?

How many molecular orbitals will have an N value of 2?

Explanation: The atomic orbitals with an n value of 2 are the 2s orbital and the three 2p orbitals. When these four orbitals from one atom interact with four orbitals from another atom, they generate 8 molecular orbitals, half of which will be bonding and the other half of which will be antibonding.

Why do scientists use the Vsepr theory?

Why do scientists use the VSEPR theory for? To explain the three-dimensional shape of molecules, scientists use valence-shell electron-pair repulsion theory. It states that the repulsion between electron pairs causes molecular shapes to adjust so that the valence-electron pairs stay as far apart as possible.

Is H2 bonding or antibonding?

For H2, bond order = 1/2 (2-0) = 1, which means H2has only one bond. The antibonding orbital is empty. Thus, H2 is a stable molecule. Again, in the MO, there is no unpaired electron, so H2 is diamagnetic.

How do you know if its Antibonding or bonding?

If the bonding interactions outnumber the antibonding interactions, the MO is said to be bonding, whereas, if the antibonding interactions outnumber the bonding interactions, the molecular orbital is said to be antibonding. For example, butadiene has pi orbitals which are delocalized over all four carbon atoms.

Why does H2 exist but not He2?

According to valence bond theory,halfilled atomic orbitals can overlapp to form a bond. Thus two hydrogen atoms along with halffilled 1s orbital,overlapp with each other to form H₂ molecule. Filled orbital can not overlapp and hence cannot form a bond. Hence diatomic helium i.e.He₂ molecule does not exist.

Why is H2 more stable than He2?

Is my reasoning on this correct: According to MO theory, H2 + will be more stable than He2 + because while they both have same bond order, He2 + has anti bonding electrons which destabilizes the molecule.

Does He2 2 exist?

There is no bond existing between atoms of He2​. So He2​ does not exist.

Is H2 molecule more stable than He2?

H2 molecule is more stable than HeH because bond order of H2=1 ad that of HeH=12 (Higher the bond order, more is the stability).

Which is more stable H2+ or H2?

H2+ will be more stable and will have more bond energy than H2−, as in H2+ the electrons are present in only bonding molecular orbital but in H2−, two electrons are present in bonding orbital and one electron in antibonding. So, the correct answer is “Option C”.

What makes H2 stable?

Why is H2 a stable molecule? H2 is stable since all electrons of the molecule can be put into the bonding molecular orbital. O H2 is stable since all electrons of the molecule can be put into the anti-bonding molecular orbital.

Which of the following is the correct order of stability H2?

Thus, the correct order of thermal stability of hydrogen halides is HF>HCl>HBr>HI.

Which one of the following is the correct order of stability?

So Ti+3>Bi+3 in order of stability.

Which is the correct order of stability?

I > II > IV > III.

Which is the most correct order of stability?

Solution : Stability of a molecule is directly related to the value of bond order. Thus, the higher the bond order, the greater the stability. If two species have the same bond order (bo), then the stability should be decided by the number of antibonding electrons.

What is the correct order of stability of Carbocation?

The more is the charge around, more is the stability of carbocation. Hence the order of stability of the carbocation is IV>III>I>II.

Which is the correct order of stability of Carbanion?

Stability of carbanion: Electron with drawing group increases the stability of carbanion. order of -I effect or withdrawing group.

What is the order of stability of Carbocation?

Thus the observed order of stability for carbocations is as follows: tertiary > secondary > primary > methyl.

Which is more stable Benzylic Carbocation or allylic carbocation?

Generally, the benzylic carbocations are more stable than allylic carbocations as they form more number of resonating structures and have less electron affinity.

Are Benzylic Carbocations stable?

Benzylic carbocations are so stable because they have not one, not two, but a total of 4 resonance structures. This shares the burden of charge over 4 different atoms, making it the MOST stable carbocation.

Is allylic carbocation more stable than tertiary?

Allylic Carbocation is more stable due to Greater mesomeric effect where as on the other side tertiary butyl Carbocation is stabilized by triple inductive effect. In both the cases mesomeric effect dominates the inductive effect due to actual delocalisation of pi electrons.

Is Benzylic more stable than tertiary?

As a result, benzylic and allylic carbocations (where the positively charged carbon is conjugated to one or more non-aromatic double bonds) are significantly more stable than even tertiary alkyl carbocations.

Which carbocation is more stable benzyl or tertiary?

The stability of carbocations increases as we go from primary to secondary to tertiary carbons. Benzyl carbocation is most stable because of delocalization of charge due to resonance of π electrons in the ring.