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marin [14]
3 years ago
10

Two electrons are found in the same atom. One has the quantum number set (3, 2, 0, +?), and the other has the quantum number set

(3, 1, 0, +?). They share thea same sub level but differentt orbitalsb same orbital but different spin directionsc same energy level but different sublevelsd same type of sub level but found in different energy sub levels
Chemistry
1 answer:
Vilka [71]3 years ago
7 0

D. Same energy level but different sublevel.

<h3>Explanation</h3>

There are four quantum numbers [1]:

  • <em>n</em><em>, </em>the principal quantum number,
  • <em>l</em>, the orbital angular momentum quantum number,
  • <em>m_l</em>, the magnetic quantum number, and
  • <em>m_s</em>, the electron spin quantum number.

As their names might suggest:

  • <em>n </em>determines the main energy level of an electron.
  • <em>l</em> determines the type of sublevel of an electron.
  • Each sublevel might contain more than one orbital. <em>m_l</em> gives the orbital of an electron.
  • Each orbital contains up to two electrons. <em>m_s</em> tells two electrons in the same orbital apart.<em> </em>

The two electrons in question come from the same atom. The question suggests that they have the same <em>n</em>, <em>m_l</em>, and <em>m_s</em>. As a result, both electrons are in main energy level <em>n</em> = 3. They share the same spin.

However, the two electrons differ in their value of <em>l</em>.

  • <em>l </em>= 2 for the first electron. It belongs to a <em>d</em> sublevel.
  • <em>l </em>= 1 for the second electron. It belongs to a <em>p</em> sublevel.
<h3>Reference</h3>

[1] Kamenko, Anastasiya, et. al, "Quantum Numbers", Physical & Theoretical Chemistry, Chemistry Libretexts, 24 Mar 2017.

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For each ionic compound formula, identify the main group to which X belongs: (c) X2SO4.
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The answer is group 1A.

In the ionic compound formula X₂SO₄, SO₄ has a -2 charge. Hence to balance this -2 charge of SO₄, X must have a +1 charge.

Group 1A elements form X⁺ type of ions because they are metals. So, they have the tendency to lose electrons.

Hence, X must belong to the 1A group.

Ionic Compounds-

  • Ionic compounds are formed by the electrostatic attraction between the anions and the cations.
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6 0
1 year ago
What is the difference in uniformity between heterogeneous and homogeneous mixtures?
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Answer:

The correct answer according to the uniformity the difference is whether you can distinguish more than one part in the mixture.

Explanation:

A homogeneous mixture is one in which with the naked eye or with a microscope no different parts can be distinguished. Its composition and properties are the same at all points, the substance is uniform.

In a heterogeneous mixture, we can observe different parts. Its composition is variable.  It can be broken down into simpler substances by physical processes. The substance, in this case, is not uniform.

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4 0
3 years ago
Which statement explains the energy term in this reaction
lana66690 [7]

Answer:

Mass is lost due to the conversion of mass to energy

Explanation:

The question is not complete, the complete question is given as:

        ^{235}_{72}U +^{1}_{0}n                       ⇒        ^{140}_{56}Ba+^{93}_{36}Kr+3^{1}_{0}n+energy

total mass equals 236.053 u              total mass equals 235.868 u

Which statement explains the energy term in this reaction? (1) Mass is gained due to the conversion of mass to energy. (2) Mass is gained due to the conversion of energy to mass. (3) Mass is lost due to the conversion of mass to energy. (4) Mass is lost due to the conversion of energy to mass.

Answer: From Einstein’s equation  E = mc², when a radioisotope element undergoes fission or fusion in a nuclear reaction, it loses a tiny amount of mass.This mass lost is converted to energy.

The law of conservation of energy  holds for this type of reaction (i.e  the sum of mass and energy is remains the same in a nuclear reaction). Mass changes to energy, but the total amount of mass and energy combined remains the same before and after a nuclear reaction.

From the reaction above, the total decrease in mass = 236.053 - 235.868 = 0.185 u

4 0
2 years ago
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The boiling point of the fluid depends on the intermolecular forces between the fluid atoms and molécules, as these forces must be disrupted to switch from a fluid to a gas. The stronger the intermolecular forces, the greater the point of boiling.

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