1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alexgriva [62]
3 years ago
14

With what allotrope of oxygen is it isoelectronic in NO2- ?

Chemistry
1 answer:
Ivahew [28]3 years ago
8 0
<span>Answer: O₃
</span><span />

<span>Explanation:
</span>
<span /><span /><span>
The term isoelectronic means same number of electrons.
</span><span />

<span>Then you need to count the number of electrons in the given species NO₂⁻.
</span><span />

<span>You have to count the number of electrons of N (nitrogen) atoms, the number of electrons of two O (oxygen) atoms, and the adjust for the negative charge of the ions.


</span><span>The atomic number of N is 7, meaning that each atom has 7 protons and 7 electrons.</span>
<span /><span>
The atomic number of O is 8, meaning that each atom has 8 protons and 8 electrons.
</span><span />

<span>The negative charge of the ion means that it has one extra electron, which is the responsible for the negative charge.
</span><span />

<span>Therefore the total number of electrons of the ion NO₂⁻ is 7 + 2 (8) + 1 = 24.
</span><span />

<span>Note that that 24 = 3 x 8, so 24 is the number of electrons in 3 atoms of oxygen.
</span><span />

<span>The moleucle O₃ is an allotrope of the oxygen. (an allotrope is a a form of an element with different structure and physical properties in the same physical state).
</span><span />

<span>Therefore, the allotrope of oxygen isoelectronic with NO₂⁻ is O₃ (ozone)</span>
You might be interested in
For which of the following processes would you expect there to be an increase in entropy? Ag+(aq) + Cl-(aq) AgCl(s) H2O(g) H2O(l
Lyrx [107]
CaBr₂(s) → Ca⁺²(aq) + 2Br⁻ (aq)     ΔS>0
6 0
3 years ago
Read 2 more answers
Why do you think most lampshades are made of translucent materials instead of transparent materials?
Gala2k [10]

Explanation:

because translucent shades lets the light through easily (gentle diffusion)

6 0
2 years ago
Describe the stages of water cycle
lora16 [44]
Evaporation, Condensation, precipitation and collection would be stages
6 0
3 years ago
Read 2 more answers
Find the atomic numbers of the as yet undiscovered next two members of the series. radon
denpristay [2]
This answer is based on the electron configuration.

And you can use Aufbau's rule to predict the atomic number of the next elements.

Radon, Rn is the element number 86.

Following Aufbau's rules, the electron configuration of Rn is: [Xe] 6s2 4f14 5d10 6p6. This means that you are suming 2 + 14 + 10 + 6 = 32 electrons with respect to the element Xe.

You can verity that the atomic number of Xe is 54, so when you add 32 you get 54 + 32 = 86, which is the atomic number of Rn.

Again, as per Aufbau's rules, the next element of the same group or period is when the 6 electrons of the 7p orbital are filled. For that, they have to pass 32 elements whose orbitals are:

7s2 5f14 6d10 7p6: count the electrons added: 2 + 14 + 10 + 6 = 32, and that is why the next element wil have atomic number 86 + 32 = 118.

Now, when you go for a new series, you find a new type of orbital, the g orbital, for which the model predict there are 18 electrons to fill.

So the next element of the group will have ; 2 + 18 + 14 + 10 + 6 = 50 electrons, which means that the atomic number of this, not yet discovered element, has atomic number 118 + 50 = 168.

By the way the element with atomic number 118 was already discovdered at its symbol is Og. You can search that information in internet.

Answers: 118 and 168
7 0
3 years ago
Read 2 more answers
A student draws the model shown below. Which of these best compares the conditions at Location X and Location Y?
arlik [135]

Answer:

Explanation:

You have to use formula b to your answer

5 0
3 years ago
Other questions:
  • How many atoms are in 1.15 mole Cu?
    10·2 answers
  • Carbon is often found in long chains composed of carbon and
    9·2 answers
  • What is a disadvantage of using solar energy to produce electricity
    5·2 answers
  • Sometimes when performing a crystallization, one solvent alone will not work and you have to use a solvent-pair. Will the solven
    7·1 answer
  • You are Investigating an organic compound. It has the following characteristics: an oxygen atom Is bonded to two carbon groups,
    8·1 answer
  • What is the percentage of water to the nearest tenth in this compound? Ba(OH)2 * 8H2O
    6·1 answer
  • What does it mean for a hypothesis to be testable?
    5·2 answers
  • Draw the structure of the product formed when the given compound is heated in aqueous base. The formula for the product is C8H12
    14·1 answer
  • What is the color of the flame when magnesium burns in air ​
    8·1 answer
  • Geologists have a rule of thumb: when molten rock cools and solidifies, crystals of compounds with the smallest lattice energies
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!