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
bulgar [2K]
3 years ago
12

The table compares the number of electrons in two unknown neutral atoms. Use this information to determine the number of Valence

electrons in the atoms. Which of the following correctly compares the stability of the two atoms
Chemistry
1 answer:
AnnZ [28]3 years ago
4 0

Answer:

for example, a carbon atom weighs less than 2 × 10−23 g, and an electron .... Determine the numbers of protons, neutrons, and electrons in one of these iodine anions. ... We use the same symbol to indicate one atom of mercury (microscopic ... All known elements and their symbols are in the periodic table

Explanation:

You might be interested in
When an unknown amine reacts with an unknown acid chloride, an amide with a molecular mass of 163 g/mol (M = 163 m/z) is formed.
DanielleElmas [232]

Answer:

            As the molecular mass of given amine is 163 g/mol (a odd number) it means that this compound contains a odd number of Nitrogen atoms. We will first apply Rule of Thirteen to get the molecular formula.

Rule of Thirteen:

First divide the parent peak value by 13 as,

                = 163 ÷ 13

                = 12.53

Now, multiply 13 by 12,

                = 13 × 12 (here, 12 specifies number of carbon atoms)

                = 156

Now subtract 156 from 163,

                = 163 - 156

                = 7

Add 7 into 12,

                = 7 + 12

                = 19 (hydrogen atoms)

So, the rough formula we have is,

                                                       C₁₂H₁₉

Now, add one Nitrogen atom to above formula and subtract one Carbon and 2 Hydrogen atoms as these numbers are equal to atomic mass of Nitrogen atom as,

                C₁₂H₁₉   -------N-------->    C₁₁H₁₇N

Also, as shown in ¹³C-NMR there is one peak around 180 ppm and the peak at 1661 cm⁻¹ in IR spectrum is characteristic to carbonyl group hence, we will add one oxygen atom to the chemical formula accordingly. i.e.

                C₁₁H₁₇N   -------O-------->    C₁₀H₁₃NO

Molecular Formula: C₁₀H₁₃NO

Also,

In NMR the the four peaks around 120 ppm are assigned to a mono substituted benzene ring.

The absence of IR peak above 3200 cm⁻³ also confirms that the amine is tertiary in nature and there is no hydrogen attached to the nitrogen atom.

It can be observed that the peaks in upfield are duplicating. This can be due to the presence of rotamers of said compound.

The most plausible structure for given data is shown below, and the resonance structure along with rotamers are also shown.

6 0
3 years ago
Design an invitation you could use to calculate the density of a penny
Nataliya [291]
Firstly, the density of any substance is represented by the mass (amount of matter) as divided by the volume(amount of space). According to external websites, the mass of a penny is 2.5 grams.However, the volume of a penny is .35cm to the power of 3 (due to the thickness of the penny being extremely minimal.Thus the amount of density is extremely little). Therefore, the density of a penny is 0.875 g/cm cubed (dimensional analysis).As for an invention that could be used, that is possible with the usage of a series of measurements that can both calculate mass and volume and directly allocate that to attain density
7 0
3 years ago
Answer this question:
almond37 [142]

Answer:

Meteorologists look at data help from the computer about temperature, pressure, humidity, and wind speed, among many other data points to try and accurately predict the weather.

5 0
2 years ago
Which of the following actions describes nuclear fusion
djverab [1.8K]
C it is combining the nuclei to become bigger
5 0
2 years ago
Read 2 more answers
Element A has an electronegativity of 0.8 and element B has an electronegativity of 3.0. Which statement best describes the bond
Advocard [28]

Answer:

C) The compound is largely ionic with A as the cation.

Explanation:

Pulings proposed the method to determine if the compound is ionic in nature or covalent in nature , by finding the difference between the electronegativity of the respective cation and anion .

The ion with higher electronegativity is the anion and the ion with lower electronegativity is the cation.

The electronegativity difference above 1.7 make the compound ionic in nature.

Hence, from the question ,

A is the cation and B is the anion.

And the electronegativity difference above 1.7 so the compound is ionic in nature.

8 0
3 years ago
Other questions:
  • An average copper penny minted in the 1960s contained about 3.000 g of copper. how much chalcopyrite had be mined to produce 100
    6·2 answers
  • What does tectonic activity refer to
    14·1 answer
  • Protons are positively charged particles and neutrons have no charge. On the other hand, electrons are negatively charged specie
    11·1 answer
  • Which statement describes nuclear binding energy?
    8·2 answers
  • How many mol of lithium are there in 1.204 x 1024 lithium atoms
    11·1 answer
  • How many millions of years ago did the earliest marine reptiles evolve from land reptiles?
    6·2 answers
  • What is the volume occupied by 4 grams of oxygen at room temperature​
    7·1 answer
  • After distilling your crude methyl benzoate, you set aside 4.83 grams of the purified ester. You then prepare the grignard reage
    9·1 answer
  • When is the generator rotate coil wire magnetic field which is of the following is it produced
    8·1 answer
  • How does evaporation lead to precipitation​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!