Thomson's atomic model is best described by which of the following statements? (2 points)

A nucleus with electrons moving around it like planets

A positive solid sphere with electrons dispersed throughout

Neutrons surrounded by orbiting electrons

A negative sphere with electrons surrounding it
2.
Which of the following is not part of Dalton's atomic theory? (2 points)

All matter is made up of atoms.

All atoms of a given element are the same.

Different elements are made up of different atoms.

Atoms can be broken down into smaller pieces.
3.
What describes the current model of the atom? (2 points)

Protons orbit the nucleus like planets orbit the sun.

That electrons and protons move randomly around a nucleus.

Electrons travel as waves in the electron cloud that surrounds the nucleus.

Electrons orbit the nucleus like planets orbit the sun.
4.
Consider the work of Thomson, Rutherford, and Bohr. In your opinion, which was the most important and why? Be sure to state what your selected person discovered and how it contributed to the model of the atom. (4 points)

1 ) J.J. Thompson discovered the electron and put forward the 'plum pudding model' with charges spread evenly throughout the atom, in 1897
so the correct answer would be a positive solid sphere with electrons dispersed throughtout

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pstnonsonjoku pstnonsonjoku · Answer 2 · 2021-10-05T16:44:02+02:00

The theory of atomic structure was gradually developed by important scientists such as J.J Thompson, Rutherford, Bohr and Schrodinger.

According to J.J Thompson the English physicist, the atom is composed of a positive solid sphere with electrons dispersed throughout. This is called the plum pudding model.

The Dalton's atomic theory originally never included the statement that atoms can be broken down into smaller pieces. The Dalton's upheld the indivisibility of the atom.

The current model of the atom is based on the wave mechanical model which states that electrons travel as waves in the electron cloud that surrounds the nucleus.

The work of Bohr was the most important because the introduced the idea of energy quantization and laid the foundation of the current model of the atom as we know it. The proposition that the energy of electrons in the atom is quantized was a significant milestone in the development of atomic theory.

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