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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. 
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The low salt diet is a great solution to overcome heath determinant of Biology and genetics.

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6 0
3 years ago
A grassland is experiencing a severe drought. The lack of rain is causing the grass to die and the ponds and creeks to dry up.
dusya [7]

The population of fish will decrease.

The population of grazing animals will decrease.

<h3>What is drought?</h3>

A drought is a prolonged period without enough precipitation/water to support people, animals or crops.

With less water, fish and other creatures have fewer places to dwell, swim, and evade predators. In the near run, shrinking streams and lakes necessarily result in fewer fish. Drought conditions can cause water temperatures to rise, affecting cold-water species such as native trout.

The population of grazing animals would decrease as the grass is a food source and without their food source, there would be no source of staying meaning that they would result to finding new food sources through migration likely.

7 0
2 years ago
Explain how the data from the river samples showed that there was a problem with the water treatment plant.
Agata [3.3K]

Answer:

The water treatment plant does not work properly.

Explanation:

The data from the river samples showed that there was a problem with the water treatment plant because there is high amount of pollutants are present in the river sample. The presence of pollutants in the samples shows that the water treatment plant did not work properly, if they did no pollutants are present in the river water so this presence of pollutants indicates inefficiency of water treatment plant.

5 0
3 years ago
Which of the following actions occurs during DNA replication?
Nata [24]
Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin.
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3 years ago
Which statement correctly describes glucose (C6H12O6)?
Alecsey [184]

Answer:

D

Explanation:

Glucose is a compound of 6 atoms of carbon, 12 atoms of hydrogen and 6 atoms of Oxygen. It contains 24 total atoms.

8 0
3 years ago
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