Chemistry, 10.03.2020 06:14, faith1993

Which of the following statements are true?

a. Antibonding orbitals are higher in energy than bonding orbitals (if all orbitals are created from the same atomic orbitals).
b. Electrons cannot occupy an antibonding orbital.
c. The probability is 100% for finding an electron at the nucleus in a π∗ orbital.
d. s orbitals can make only σ or σ∗ molecular orbitals.

Answers: 1

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Answers

answered: crismelycalderon1904

As per the statement, the Antibound orbital is a type of molecular orbital that weakness the comical bonds between the two and raises the energy of molecules relative to the separate atoms.

The Spherical orbitals are around the atomic nucleus and interact with the P orbitals. Antibonding orbital have higher energy than bonding orbitals due to the reduce in electron density between the nuclei. The s orbitals makes 'σ' a lesser energy of molecular orbital or 'σ∗' molecular orbitals in adjacent atoms when they overlap.

Hence the option A and D are correct.

Learn more about the statements that are true.

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answered: onlylee

Option a and d are true

Explanation:

Antibonding orbitals are higher in energy than bonding orbitals this is due to the decrease in electron density between the nuclei.

An antibonding orbital is an atomic or molecular orbital whose energy increases as its constituent atoms are brought closer together - thus generating a repulsive force that hinders bonding.

Electrons cannot occupy an antibonding orbital is false because if the bonding orbitals are filled according to Pauli exclusion principle, then any additional electrons will occupy antibonding orbitals.

The probability is 100% for finding an electron at the nucleus in a π* orbital is false.

Pi orbital (π orbital), is an antibonding molecular orbital and is formed by the overlapping of two bonded nuclei. Here we see one nodal plane passing through the two nuclei, like pi bonds.

s orbitals can make only 'σ' a lower energy molecular orbital or 'σ∗' a higher energy molecular orbitals in adjacent atoms when they overlap. This is true

answered: Guest

i think that the answer is c

answered: Guest

The answer to your question really depends on three things: how much water you have, how cold it is to start out, and how cold the things around it are. water actually freezes when it gets to 32 degrees fahrenheit (0 degrees celsius), but the time it takes to get there may be different. let's start with the first. if you take two glasses, and fill one with a tiny bit of water, and the other about halfway, then put them both in the freezer, the one with less water will freeze first (you can try this at home, but i recommend using plastic cups and not glass ones). now let's move on to the second part. let's say you have two glasses, and you fill one with really cold water that has been in the refrigerator, and the other with really hot water from the sink. if you put both of them in the freezer, the one that started out colder will freeze first. for the third part, let's imagine that you have two glasses with the same amount of water in them, and the water is at the same temperature. imagine putting one outside on a really really cold day in georgia, and having a friend in alaska put one outside on the same day. since it would be so much colder in alaska, the glass of water there would freeze before yours. so, if you took a tiny bit of really cold water in a glass, and put it outside on a cold day in alaska, it would freeze a lot faster than a big glass of hot water outside on a cold day in georgia.