Question

An atomic theory is a model developed to explain the properties and behaviors of atoms. As with any scientific theory, atomic theory is based on scientific evidence available at any given time and is subject to change. The development of atomic theory was contingent on research that discovered and described the subatomic particles. One early model was critical in predicting that the positive area of an atom was a small, dense location. Which model was the FIRST to suggests this?

Answer 1

Answer:

the model was Rutherford atomic model which was based on the alpha ray scattering experiment conducted by Gieger and Marsden

Answer 2

The early model which was critical in predicting that the positive area of an atom was a small, dense location was the Rutherford atomic model.

• Rutherford was a scientist who proposed the atomic structure of elements.

According To The Rutherford Atomic Model:-

• The positive charge and maximum mass of an atom are directed in an extremely small volume and this region of the atom was called a nucleus by him.

• Rutherford’s model suggested that the negatively charged electrons surround the nucleus of an atom. He also professed that the electrons that surround the nucleus revolve around it with relatively high speed in circular paths and he named these circular paths as orbits.

• According to the above observation, As Electrons are negatively charged and the nucleus is densely concentrated mass of positively charged particles is held together by a strong electrostatic force of attraction.

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