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
Sholpan [36]
3 years ago
9

What experimental evidence was provided for the nuclear model of the atom?

Biology
2 answers:
lara31 [8.8K]3 years ago
4 0

Answer: alpha particles bouncing off gold foil

Explanation:

Rutherford gave an experiment known as gold foil experiment.

In his experiment, he took a gold foil and bombarded it with alpha particles which are basically helium nuclei carrying positive charge. He thought that the particles will pass straight through the foil, but to his surprise, many of them passed through, some of them deflected their path and a few of them bounced back.

From this he concluded that in an atom, there exist a small positive charge in the center. Due to this positive charge, the alpha particles deflected their path and some of them bounced straight back their path as like repels like.

Bohr in his structure of atom explained that electrons revolve around the nucleus in fixed orbit or shell or energy levels.These energy levels are stable and have fixed energy values.  When an electron absorbs energy , it moves to a higher energy state and when gets back to its original ground state, it emits energy which gives the line spectra.

Irina-Kira [14]3 years ago
3 0
Alpha particles bouncing off gold foil in Rutherford's gold-foil experiment which developed the understanding of the structure of the atom, expanding upon Thomson's research with cathode rays. 
You might be interested in
Scientists decide the age of different rock layers by the things that they uncover in the rock.Which of the items below could sc
vovangra [49]
C.)a fossilized fish
3 0
3 years ago
Read 2 more answers
You are studying a population of mice that fall into two size classes: small and large. You are curious if mouse size is under s
Morgarella [4.7K]

Answer:

The information is not sufficient to support this asumption

Explanation:

To unequivocally determine the existence of selection acting on this trait (size), it is necessary to carry out an experiment in which the sample size should be statistically significant (N sample for each group > 50). Moreover, it is also important to include negative controls (i.e., individuals with an average size between both groups) in the experiment.

8 0
3 years ago
Why is absolute dating more accurate than relative dating?
nadezda [96]
Absolute dating uses the half-life of an element.
7 0
3 years ago
Compared to the inertia of a 1-kilogram mass, the
avanturin [10]

Answer:

D. 4 times as great

Explanation:

The inertia of an object is the resistance offered by the object to change in its motion or position.

Then concept of inertia is obtained from Newton's first law of motion which states that an object which is not subjected to any net external force will remain its position of rest or constant velocity of motion until some net external force acts on it. The object at rest will then start to move whereas the object moving at constant velocity will experience a change in its speed or direction of motion.

This reluctance to change position is greater, the more massive an object is as well as the higher the speed of motion of the object. Thus, inertia is directly proportional to the mass of the object as well to the velocity of an object in motion.

From Newton's first law, inertia can be calculated as the force to be overcome to mobile an object, i.e. Inertia = F = ma

Where m is mass of object, a = acceleration of the object.

Objects on the earth's surface experience a constant acceleration, g.

Thus for a 1 kg mass, Inertia = 1 × g

For a 4 kg mass, inertia = 4 × g

The inertia of a 4 kg mass is four times as great as a 1 kg mass.

8 0
2 years ago
Japanese honeysuckle is found in the United States. It outcompetes other plants by blooming early and dying off late. This is an
Dominik [7]

Answer:

nonnative species

Explanation:

just learned about it on Edge

6 0
3 years ago
Other questions:
  • A woman who has blood type A positive has a daughter who is type O positive and a son who is type B negative. Rh positive is a t
    10·1 answer
  • Which type of reproduction is MOST advantageous for the production of a wide variety of different organisms? A) budding B) fragm
    12·2 answers
  • Explain control group
    14·2 answers
  • The form of a trait that _____ shows up in an organism when the allele is present. _______________ another trait
    9·1 answer
  • What is the region inside the cell except for the nucleus?
    6·1 answer
  • Someone please answer I really need help!
    6·2 answers
  • This site isn't exactly for talking but whatever.
    10·1 answer
  • What are the answers of these according to emt
    11·2 answers
  • 3.2 Suggest the aim of the experiment of lime water ​
    8·1 answer
  • consider the two individuals that have the following genotypes: CCDd and Ccdd. Predict the outcomes of a cross for these two ind
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!