History Of Atomic Theory

Chemistry

NGSS

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Quizzes Created: 1 | Total Attempts: 245

| Attempts: 245 | Questions: 6

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1. The atom is the basic building block of matter.

True

False

The statement "The atom is the basic building block of matter" is true because atoms are the smallest units of matter that retain the chemical properties of an element. Atoms combine to form molecules and compounds, which in turn make up all the substances in the universe. Therefore, understanding the structure and behavior of atoms is crucial in understanding the properties and behavior of matter.

Explanation

About This Quiz

Explore the foundational concepts of atomic theory through this engaging quiz. Test your knowledge on key historical models and discoveries, from Rutherford's nucleus proposal to Bohr's orbital theory, and understand the basic building block of matter.

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2. __________ proposed the nucleus to the atom.

Rutherford proposed the nucleus to the atom. This is because through his famous gold foil experiment, he discovered that atoms have a tiny, dense, and positively charged nucleus at the center, surrounded by a cloud of negatively charged electrons. This groundbreaking discovery revolutionized the understanding of atomic structure and led to the development of the modern atomic model.

Explanation

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3. Match the following

Dalton

Thompson

Rutherford

Bohr

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4. Match the following

Dalton

Thompson

Rutherford

Bohr

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5. ___________ discovered electrons

J.J. Thompson is credited with the discovery of electrons. Through his experiments with cathode rays, Thompson was able to determine that these rays were composed of negatively charged particles, which he named electrons. His discovery revolutionized our understanding of atomic structure and laid the foundation for the development of modern physics.

Explanation

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