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
monitta
2 years ago
13

One of the postulates of bohr's atomic model of a moving electron is that angular momentum of a moving electron is quantized. Ex

plain its meaning and calculate the angular momentum of third orbit (i.e n=3)
Chemistry
1 answer:
oksano4ka [1.4K]2 years ago
5 0

The angular momentum of an electron in the third Bohr orbit of a hydrogen atom is given by mvr=3h÷2π

<h3>What is momentum?</h3>

Momentum is defined as the amount of motion occurring in something that is moving, or the force that drives something forward to keep it moving.

Bohr never assumed stable electronic orbits with the electronic angular momentum quantized as

l=mvr = \frac{nh}{2pi}

Quantization of angular momentum means that the radius of the orbit and the energy will be quantized as well.

Bohr assumed that the discrete lines seen in the spectrum of the hydrogen atom were due to transitions of an electron from one allowed orbit/energy to another.

Learn more about momentum here:

https://brainly.in/question/38837394

#SPJ1

You might be interested in
The use of uranium-238 to determine the age of a geological formation is a beneficial use of
tester [92]

Answer:

4- radioactive isotopes

Explanation:

I don't remember exactly but this question was on the regents

3 0
3 years ago
An element X combines with oxygen to form a compound of formula XO2. If 24.0 grams of element X combines with exactly 16.0 grams
tensa zangetsu [6.8K]

Answer:

atomic mass of X is 48.0 amu

Explanation:

Let y be the atomic mass of X

Molar mass of O_2 is = 2×16 = 32 g / mol

X + O2 -----> XO_2

According to the equation ,

y g of X reacts with 32 g of O_2

24 g of X reacts with Z g of O_2

Z = ( 32×24) / y

But given that 24.0 g of X exactly reacts with 16.0 g of O_2

So Z = 16.0

⇒ (32×24) / y = 16.0

⇒ y = (32×24) / 16

y= 48.0

So atomic mass of X is 48.0 amu

4 0
3 years ago
Which of the following organisms in the soil food chain does not obtain energy directly from plants?
aliina [53]
<span>The organisms in the soil food chain that don't obtain energy directly from plants are protozoa.
</span>
3 0
3 years ago
Read 2 more answers
According to the balanced equation shown below, 1.00 mole of oxalic acid, h2c2o4, reacts with _________ moles of permanganate io
zheka24 [161]
The balanced equation that shows the reaction between oxalic acid and permanganate ion in an acidic medium is: 2MnO4- + 5H2C2O4 + 6H+ -> 2Mn(2+) + 10CO2 + 8H2O. Thus, 1 mole of oxalic acid reacts with 0.4 mole of permanganate ion. This was obtained using stoichiometry:

1 mol H2C2O4 x (2 mol MnO4-/ 5 mol H2C2O4) = 0.4 mol MnO4- 

In this redox reaction, the permanganate is reduced to manganese(II) ion.
6 0
3 years ago
why is the term "ionic" used when describing compounds formed from a metal element and a nonmetal element?
nordsb [41]
Ionic compounds form when metals transfer valence electrons to nonmetals. Ionic compounds exist as crystals rather than molecules.
8 0
3 years ago
Other questions:
  • A patient needs to be given exactly 1000ml of 15% (w/v) intravenous glucose solution. The stock solution is 35% (w/v). How many
    5·2 answers
  • Water, H2O, has a higher boiling point than methane, CH4.<br><br> TRUE<br><br> FALSE
    11·1 answer
  • How many moles are there in 40g of calcium
    10·1 answer
  • If you start with 75 mg of anisole and excess bromine, and the bromination occurs 3 times, then what is your theoretical yield (
    9·1 answer
  • Sodium metal reacts with chlorine gas in a combination reaction. Write a balanced equation to describe this reaction. Click in t
    5·1 answer
  • What is the molarity of sodium ions in a solution prepared by diluting 250. mL of 0.550 M Na2SO4 to 1.25 L? (A) 0.110 M (C) 0.22
    10·1 answer
  • Consider the following reaction where Kc = 1.80×10-2 at 698 K:
    12·1 answer
  • Which one of the following is not a mixture?Air,mercury ,milk,cement​
    5·2 answers
  • What is potential energy?
    5·2 answers
  • At room temperature (20°C) and pressure, the density of air is 1.189 g/L. An object will float in air if its density is less tha
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!