Atomic Theory: Nuclear Model

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Questions and Answers

What is the primary feature of the nuclear model of the atom?

Electrons are found in fixed paths around the nucleus.

Electrons are embedded within a positively charged sphere.

Atoms have equal numbers of protons and neutrons.

Atoms consist of a positively charged nucleus with orbiting electrons. (correct)

Which subatomic particle resides in the nucleus of an atom?

Photon

Electron

Proton (correct)

Neutron (correct)

Which model of the atom proposed that electrons are free-floating within a positively charged 'soup'?

Nuclear model

Plum pudding model (correct)

Quantum mechanical model

Planetary model

What aspect of atomic structure did Niels Bohr primarily contribute to?

Defining electron shells around the nucleus Signup and view all the answers

In the nuclear model, how is the size of the nucleus compared to the overall size of the atom?

The nucleus is very small compared to the atom. Signup and view all the answers

What is the main concept of the solid sphere model of atomic theory?

Atoms are solid and dense with no internal structure or subatomic particles considered. Signup and view all the answers

Which atomic model was proposed before the discovery of subatomic particles?

Solid sphere model Signup and view all the answers

What fundamental concept did Niels Bohr contribute to atomic theory?

The quantization of electron energy levels Signup and view all the answers

Which of the following statements best describes Niels Bohr's contribution to atomic theory?

He proposed that electrons exist in defined paths around the nucleus. Signup and view all the answers

What distinguishes the nuclear model of the atom from the solid sphere model?

The nuclear model includes the concept of a central nucleus. Signup and view all the answers

Which model of atomic structure conceptualizes positive charge being spread throughout an atom?

Plum pudding model Signup and view all the answers

Which of the following correctly describes the electron configuration of carbon?

1s² 2s² 2p² Signup and view all the answers

What are the three main subatomic particles found in an atom?

Protons, electrons, and neutrons Signup and view all the answers

Which model of the atom is characterized by a central nucleus surrounded by electrons in orbits?

Nuclear model Signup and view all the answers

Which statement best describes the plum pudding model of the atom?

Electrons are distributed in a positively charged 'soup' throughout the atom Signup and view all the answers

Study Notes

Nuclear Model

The atom features a small, dense nucleus located at the center.
The nucleus carries a positive charge due to protons.
Electrons orbit the nucleus, analogous to planets revolving around the sun.

Solid Sphere Model

Atoms are portrayed as dense and solid entities.
This model lacks consideration for internal structure or subatomic particles.

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Description

Explore the nuclear model of the atom, which describes a small, dense, positively charged nucleus at its center, surrounded by electrons in orbit. This quiz will test your understanding of the fundamental structure of atoms and their components.