Modelos atómicos Flashcards
Who proposed the first atomic model based on indivisible particles?
Democritus
According to Dalton’s atomic theory, what is the smallest unit of matter?
An atom
True or False: Thomson discovered the electron using the cathode ray tube.
True
What is the name of the model proposed by Rutherford that describes the atom as having a dense nucleus?
Rutherford model
Fill in the blank: Bohr’s model of the atom introduced the concept of ________ orbits.
quantized
What did Lewis contribute to atomic theory?
Lewis structures to represent chemical bonding.
Who developed the wave mechanical model of the atom?
Schrödinger
Multiple Choice: Which atomic model introduced the concept of electron shells? A) Dalton B) Thomson C) Bohr D) Rutherford
C) Bohr
What was Sommerfeld’s contribution to atomic theory?
He expanded Bohr’s model by introducing elliptical orbits.
True or False: Dalton believed that atoms of different elements are identical.
False
What is the primary focus of the Thomson model?
The existence of electrons within a positively charged ‘soup’.
Fill in the blank: In Rutherford’s gold foil experiment, most alpha particles passed through the foil, indicating that atoms are mostly ________.
empty space
What did Bohr’s model explain about the emission spectra of hydrogen?
It explained the discrete lines in the emission spectrum.
Multiple Choice: Which model introduced the concept of probability clouds for electron positions? A) Thomson B) Schrödinger C) Rutherford D) Bohr
B) Schrödinger
Who is credited with the concept of electron configuration?
Lewis
