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
yulyashka [42]
3 years ago
7

Why was Niels Bohr’s atomic model superior to all the earlier models?

Chemistry
1 answer:
Elena L [17]3 years ago
5 0

Answer the correct option will be option B.

Explanation: this is how he showed the electron could orbit the nucleus without falling into it. This is so because he explained that the electron  revolves around the nucleus  in a fixed circular orbit with fixed energy and cannot occupy just any energy level which is defined as quantisation of energy.

option A is one of postulates given by Dalton in his Dalton's atomic theory which later proved to be wrong.

option C  it is one of the postulates given by the in J.J Thomson in his model of  an atom which was the first atomic model.

option D Schrodinger has used the wave nature to explain the position of electrons around the nucleus.


You might be interested in
A compound with molecular formula C6H15N exhibits a singlet at d 0.9 ppm (1H), a triplet at 1.10 ppm (3H), a singlet at 1.15 ppm
Triss [41]

Answer:

CH3 - CH2 - NH - C(CH3)3

Explanation:

The 1HNMR is the acronym for Proton nuclear magnetic resonance and it is used in chemistry or Chemical laboratory for the analysis and identification of compounds.

In order to be able to answer the question accurately you have to have the tables containing all the values for chemical shift. The Chemical shift is measured in ppm and it occur due to Resonance frequency variation.

From the table, a singlet at 1.15 ppm (9H) is - C(CH3)3.

A singlet at d 0.9 ppm (1H) shows the presence of a secondary amine group, that is -R2NH group.

A triplet at 1.10 ppm (3H) shows that we have;

CH3- CH2-

A quartet at 2.6 ppm (2H) shows that we have;

-CH2 - CH3.

Therefore, joining all together we have;

CH3 - CH2 - NH - C(CH3)3.

Kindly check attached file for the picture of the structure.

5 0
3 years ago
What is the density of a liquid if it's volume is 125 mL and it's mass is 50g?
masha68 [24]

Answer:

0.4g/ml

Explanation:

density= mass/volume

density=50g/125ml

density=0.4g/ml

6 0
2 years ago
Which classification best describes oxygen gas? a element b compound c solution d heterogeneous mixture
NNADVOKAT [17]

Answer:

oxygen is an element because it is a pure substance which cannot be split into simpler substances by chemical means

4 0
3 years ago
What process produces the sediments that ultimately lead to soil formation
Vikentia [17]
The process by which rocks are broken down to form soil is called weathering. It is divided into 3 types, physical, chemical and biological weathering.
Physical weathering is the process by which rocks are broken down as a result of physical agitations. It is also called mechanical weathering and during this process the chemical nature of the rock is not affected. Biological weathering has to do with the weakening of rocks and their eventual disintegration as a result of plants and animals activities. Chemical weathering refers to the disintegration of the rock particles as a result of chemical reactions.
6 0
3 years ago
Read 2 more answers
46. The number of orbitals in the sub-levels increases by even numbers.<br> a. TRUE<br> b. FALSE
frosja888 [35]

Answer:

It's true.

Explanation:

In sub-energy level : number of orbitals

  • s : 2
  • p : 6
  • d : 10
  • f : 14

.

6 0
2 years ago
Other questions:
  • The ________ orbital is degenerate with 5py in a many-electron atom.
    14·1 answer
  • Once the ionic solid has dissolved, the anion that is formed is able to react as a base, with water as the acid. Write the net a
    5·1 answer
  • And experiment a student measures the speed of a toy car locations K through N as it rolls down a ramp based on the data collect
    13·1 answer
  • How do the number of daylight hours affect temperature
    8·2 answers
  • Which solution has the highest boiling point at standard pressure?
    5·1 answer
  • What is the net ionic equation for the reaction between nickle (II) chloride and silver (I) nitrate?
    5·1 answer
  • A sample of 4.0 L of nitrogen, at 1.2 atmospheres, is transferred to a 12 L container.
    12·1 answer
  • Two ways water and ice are the same
    6·2 answers
  • Any expert know what is the answer?
    5·1 answer
  • How can noble gas electron configuration be achieved?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!