Chapter 4 Physical Science Short Test

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By E_file01
E
E_file01
Community Contributor
Quizzes Created: 1 | Total Attempts: 338
| Attempts: 338
SettingsSettings
Please wait...
  • 1/10 Questions

    Almost all mass of an atom is located in its

    • Protons
    • Electrons
    • Electron cloud
    • Nucleus
Please wait...
About This Quiz

You need to answer each? To the best of ur ability.

Chapter 4 Physical Science Short Test - Quiz

Quiz Preview

  • 2. 

    One of the first people to state that matter is made up of atoms was

    • Democritus

    • Aristotle

    • Dalton

    • Rutherford

    Correct Answer
    A. Democritus
    Explanation
    Democritus was one of the first people to propose the concept that matter is composed of indivisible particles called atoms. He believed that atoms were eternal, unchangeable, and infinite in number. Democritus' atomic theory was based on the idea that atoms differ in size, shape, and arrangement, which determines the properties of different substances. Although his atomic theory was not widely accepted during his time, it laid the foundation for the development of modern atomic theory.

    Rate this question:

  • 3. 

    Which particle is the least massive?

    • Proton

    • Electron

    • Neutron

    • Nucleus

    Correct Answer
    A. Electron
    Explanation
    The electron is the least massive particle among the options given. It has a much smaller mass compared to the proton and neutron, which are both found in the nucleus of an atom. The electron is a subatomic particle that orbits the nucleus and carries a negative charge. Its mass is approximately 1/1836th of the mass of a proton or neutron.

    Rate this question:

  • 4. 

    Dalton's model of an atom is best described as

    • A solar system

    • A solid sphere

    • A plum pudding

    • An electron cloud

    Correct Answer
    A. A solid sphere
    Explanation
    Dalton's model of an atom is best described as a solid sphere because it proposed that atoms were indivisible and indestructible particles with no internal structure. This model suggested that atoms were uniform, dense, and had no empty spaces within them. However, this model was later replaced by more accurate models that described the internal structure of atoms, such as the electron cloud model.

    Rate this question:

  • 5. 

    All atoms of an element have the same

    • Mass #

    • # of isotopes

    • Atomic #

    • # of neutrons

    Correct Answer
    A. Atomic #
    Explanation
    The atomic number of an element refers to the number of protons in the nucleus of an atom. Since all atoms of an element have the same number of protons, the correct answer is atomic #. The mass number refers to the total number of protons and neutrons in the nucleus, which can vary among different isotopes of the same element. The number of isotopes and the number of neutrons can also vary among different atoms of the same element.

    Rate this question:

  • 6. 

    Who provided the first evidence that atoms contain subatomic particles?

    • Dalton

    • Rutherford

    • Thomson

    • Bohr

    Correct Answer
    A. Thomson
    Explanation
    Thomson provided the first evidence that atoms contain subatomic particles. He conducted the cathode ray tube experiment and discovered that the rays were composed of negatively charged particles, which he called electrons. This experiment proved the existence of subatomic particles within atoms and laid the foundation for the development of the atomic model. Dalton proposed the atomic theory, Rutherford conducted the gold foil experiment and proposed the nuclear model of the atom, and Bohr proposed the planetary model of the atom. However, Thomson's experiment was the first to provide evidence of subatomic particles within atoms.

    Rate this question:

  • 7. 

    Why must indirect evidence be used to study the structure of atoms?

  • 8. 

    In Thomson's experiment, why was the glowing beam repelled by a negatively charged plate?

  • 9. 

    What is the difference between the atomic # and mass #?

  • 10. 

    What does it mean to say that an atom is in an excited state?

Quiz Review Timeline (Updated): Mar 17, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 17, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 09, 2009
    Quiz Created by
    E_file01
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.