19 Questions
How many protons are present in the element?
16
What is the number of neutrons in the element?
8
How many electrons does the element have?
16
What did Thomas Edison discover about the behavior of electrons in a vacuum tube?
He discovered negative electrons by observing the glow created when a negative particle strikes a metal plate.
How did Edison's discovery of negative electrons contribute to the understanding of electricity?
The discovery of negative electrons led to the understanding of the nature of electricity, as they are attracted to positive ions and create a current.
What is the mass of electrons in kilograms?
9 * 10^(-31) kg
What phenomena did Edison observe when studying the behavior of electrons using Kathode Ray Tubes?
Electromagnetic deflection
How did Edison utilize the discovery of extracting negative electrons from various sources?
He discovered that negative electrons can be extracted from various sources, including Cathode Rays, and stored in a battery.
What did Edison discover about the use of cold electrons to create currents?
He discovered that cold electrons can be used to create currents, and the strength of the current depends on the number of electrons.
Who discovered the electron and in what year?
J.J. Thomson in 1897
What is the relative charge of an electron?
-1
What is the average mass of a proton?
1.6 x 10^-27 kg
What is the charge of an electron?
1.6 x 10^-19 coulombs
What process involves the release of electrons?
Electrolysis
Who discovered the neutron and in what year?
James Chadwick in 1932
What is the mass of a neutron?
Approximately 1 amu (1.67 x 10^-24 kg)
What are the neutrons' role in nuclear reactions?
They interact with other subatomic particles
What are the characteristics of neutrons in terms of charge?
Neutral and do not carry an electric charge
Where are stable neutrons found?
In the nucleus of an atom
Test your knowledge of atomic structure with this quiz. Given the atomic number and mass number of an element, can you determine the number of protons, neutrons, and electrons it contains? Put your chemistry skills to the test and see how well you understand the basic components of atoms.
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