Question

Which statement about electrons and atomic orbitals is NOT true?

Answer 1

An electron has the same amount of energy in all orbitals  is not true

$\boxed{\boxed{\bold{Further~explanation}}}$

In an atom there are levels of energy in the skin and sub skin.

• This energy level is expressed in the form of electron configurations.

Writing electron configurations starts from the lowest to the highest sub-shell energy level.

So electrons that occupy the orbitals in the lowest sub-skin have the lowest energy level

• In the principle of Pauli's prohibition it was stated that there are no two electrons in one atom that can have the same four quantum numbers.

So suppose that there are two electrons occupying one orbital can have the same main quantum number (n), azimuth (l) and magnetic (m), then the last quantum number that is the quantum spin number (s) must be different.

So that the two electrons are different from just the quantum spin number, even though the other quantum numbers are the same.

So in one orbital only a maximum of 2 electrons is occupied, because if there is a third electron, this third electron will have the same quantum spin number as the previous electron

• The electron cloud is a visual representation of the location of electrons in an atom.

Orbital is the place around the nucleus where electrons may be found

Electron clouds show the state of electrons in their orbitals

So electron clouds can show the condition of all orbitals in an atom

The lowest energy level of an electron occupies a sub-skin of 1s which has only one orbital

Charging electrons in the sub skin uses the following sequence:

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s², 4d¹⁰, 5p⁶, 6s², etc.

Statement about electrons and atomic orbitals is not true is An electron has the same amount of energy in all orbitals

the electron configuration for barium (Ba) in noble-gas notation brainly.com/question/11147367

the formation of a bond.

brainly.com/question/11311275

quantum number

brainly.com/question/2292596

Keywords: the electron configuration, orbitals, atoms, energy, skin, sub skin, electron clouds

Answer 2

The statement that is not true about the electrons and atomic orbitals is $\boxed{{\text{An electron has the same amount of energy in all orbitals}}}$.  

Further explanation:

The smallest particle that is the building block of matter is known as an atom. Most of the space in an atom is empty, and its mass is concentrated inside a small region called the nucleus.

Protons, electrons, and neutrons are the three subatomic particles that are present in the atom. Electrons revolve in definite orbits around the nucleus.

Atomic Orbital:

Atomic Orbital is defined as a mathematical function that describes the wave-nature of electrons in an atom. It is used to determine the probability of finding an electron in a particular space around the nucleus of an atom. Atomic orbitals are of four types-s, p, d and f orbitals. Each orbital in atom has its own characteristic values of quantum numbers.

An electron has the same amount of energy in all orbitals.

The electrons are filled up in various orbitals in the increasing order of their energies in accordance with Aufbau principle. So the energy of electrons in all the orbitals can never be the same, and therefore this statement is not true.

An orbital can contain a maximum of two electrons.

According to Pauli’s exclusion principle, all the four quantum numbers  $\left({n,\;l,\;{m_l},\;{m_s}}\right)$ for any two electrons can never be the same. The spin of two electrons in an orbit has to be different. If one electron has the clockwise spin, the other would have the anticlockwise spin and vice-versa. So if the third electron is to be added in the same orbital, it will have the spin similar to one of the previously present electrons, which is against this principle. So an orbital can accommodate a maximum of two electrons and therefore this statement is true.

An electron cloud represents all the orbitals in an atom.

Electron cloud indicates the location of electrons in an atom and an atomic orbital is the space around the atomic nucleus where we can calculate the probability of finding electrons. So electron cloud represents all the orbitals in an atom and therefore this statement is true.

An atom’s lowest energy level has only one atomic orbital.

1s is the lowest energy level of an atom. So it will have only a single atomic orbital and therefore this statement is true.

Learn more:

1. The major contribution of Antoine Lavoisier to chemistry: brainly.com/question/2500879

2. Example of physical change: brainly.com/question/1119909

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Atomic Structure

Keywords: atom, orbital, lowest energy level, Pauli’s exclusion principle, maximum, two electrons, Aufbau principle, s, p, d, f, orbitals, true and not true.