Flashcards
Atomic theory
Flashcards for quick repetition. This quiz covers the atomic theory as well as history of atomic theory development.
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Positively charged particle of an atom is:
Positively charged particle of an atom is:
Center of an atom is called:
nucleus
Center of an atom is called:
nucleus
Particle with no electrical charge of an atom is:
Particle with no electrical charge of an atom is:
Negatively charged particle of an atom is:
Negatively charged particle of an atom is:
Match term with definition
Cation
an ion with a positive charge
Anion
an ion with a negative charge
Match term with definition
Cation
an ion with a positive charge
Anion
an ion with a negative charge
The nuclear model of the atom held that:
matter was made of tiny electrically charged particles that were smaller than the atom.
matter was made of tiny, indivisible particles.
the atom had a dense, positively charged nucleus.
electrons were randomly spread through "a sphere of uniform positive electrification."
the atom had a dense, positively charged nucleus.
The nuclear model of the atom held that:
matter was made of tiny electrically charged particles that were smaller than the atom.
matter was made of tiny, indivisible particles.
the atom had a dense, positively charged nucleus.
electrons were randomly spread through "a sphere of uniform positive electrification."
the atom had a dense, positively charged nucleus.
What is the name of the researcher who isolated the neutron in 1932?
James Chadwick
Niels Bohr
Robert Millikan
Ernest Rutherford
What is the name of the researcher who isolated the neutron in 1932?
James Chadwick
Niels Bohr
Robert Millikan
Ernest Rutherford
Which scientist isolated the proton from the nucleus in 1919?
Ernest Rutherford
James Chadwick
Niels Bohr
J.J. Thomson
Which scientist isolated the proton from the nucleus in 1919?
Ernest Rutherford
James Chadwick
Niels Bohr
J.J. Thomson
Which of the following is the philosopher credited with coining the term "atom"?
Plato
Democritus
Aristotle
Socrates
Which of the following is the philosopher credited with coining the term "atom"?
Plato
Democritus
Aristotle
Socrates
A particle smaller than an atom:
subatomic particle
A particle smaller than an atom:
subatomic particle
What is the value of the charge on an electron?
Positive1.60 x 10^-19 coulombs
Positive 1.60 x 10^-19 volt
Negative 1.60 x 10-^19 coulombs
Negative 1.60 x 10^-19 volt
Negative 1.60 x 10-^19 coulombs
What is the value of the charge on an electron?
Positive1.60 x 10^-19 coulombs
Positive 1.60 x 10^-19 volt
Negative 1.60 x 10-^19 coulombs
Negative 1.60 x 10^-19 volt
Negative 1.60 x 10-^19 coulombs
Which scientist discovered the electron?
Ernest Rutherford
William Crookes
Michael Faraday
J.J. Thomson
Which scientist discovered the electron?
Ernest Rutherford
William Crookes
Michael Faraday
J.J. Thomson
J.J. Thomson proved that cathode rays were beams of .....
J.J. Thomson proved that cathode rays were beams of .....
Different forms of the same element, containing the same number of protons but different number of neutrons are:
isotopes
Different forms of the same element, containing the same number of protons but different number of neutrons are:
isotopes
Match definitions:
Aufbau Principle
states that each electron occupies the lowest energy orbital available
Pauli's exclusion Principle
principle that states electrons occupying the same orbital must have opposite spin
Hund's Rule
states that every orbital in a subshell has one electron before a single orbital is double occupied with two.
Match definitions:
Aufbau Principle
states that each electron occupies the lowest energy orbital available
Pauli's exclusion Principle
principle that states electrons occupying the same orbital must have opposite spin
Hund's Rule
states that every orbital in a subshell has one electron before a single orbital is double occupied with two.
