The atom is the basic building block of matter.

History Of Atomic Theory

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| By Brooklynbowden7

Brooklynbowden7

Community Contributor

Quizzes Created: 1 | Total Attempts: 240

Questions: 7 | Attempts: 240 | Updated: Mar 20, 2023

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1.

Explain what an atom is.
2.

__________ proposed the nucleus to the atom.

Explanation
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.

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3.

Bohr proposed _____________

Explanation
Bohr proposed the concept of orbitals.

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4.

___________ discovered electrons

Explanation
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.

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5.

The atom is the basic building block of matter.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
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.

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History Of Atomic Theory

Explain what an atom is.

__________ proposed the nucleus to the atom.

Bohr proposed _____________

___________ discovered electrons

The atom is the basic building block of matter.