Quantum Theory and the Atom

What is the electron configuration of Lithium?

• 1s² 2s² 2p³

• 1s² 2s² 2p¹

• 1s¹ 2s²

• 1s² 2s¹

Tags

NGSS.HS-PS1-1

This is the most complete and current model of the atom. It consists of 61 elementary particles. Electrons are located in complex orbitals.

• The "Quantum Mechanical Model" of the atom

• The "Rutherford Model" of the atom

• The "Plum Pudding Model" of the atom

• The "Bohr Model" of the atom

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NGSS.HS-PS1-2

Ernest Rutherford discovered that atoms were mostly _________________. 

• negatively charged

• positively charged

• electrons

• empty space. 

What can you conclude from the fact that scientists continue to update the atomic model?

• New information about atoms continues to be discovered

• Old information about atoms is completely useless

• Scientists did not have any information about atoms until a few years ago

• Scientists still have no idea what atoms look like

Who proposed that electrons move around the nucleus in circular orbits?

• Dalton

• Thomson

• Rutherford

• Bohr

Which of the following has the atomic models in the correct Chronological order?

• Solid sphere, Plum pudding, Nuclear, Planetary, Quantum Mechanic/Electron Cloud

• Solid sphere, Plum pudding, Nuclear, Quantum Mechanic/Electron Cloud, Planetary,

• Plum pudding, Nuclear, Planetary, Quantum Mechanic/Electron Cloud,Solid sphere

• Nuclear, Planetary, Solid sphere, Quantum Mechanic/Electron Cloud,Plum pudding,

This model added on to previous models by showing electrons existed at certain "energy levels". It is often called the Planetary Model.

• The "Bohr Model" of the atom

• The "Rutherford Model" of the atom

• The "Plumb Pudding Model" of the atom

• The "Quantum Mechanical Model" of the atom

Tags

NGSS.HS-PS1-1

Idea was of an indivisible particle of matter he called "atomos"

• John Dalton

• Aristotle

• Democritus

• Plato

Who named the positive center of the atom the "nucleus?"

• Democritus

• Dalton

• Thomson

• Rutherford

Electron cloud is based on

• Quantum Mechanics

• Gold Foil Experiment

• Matter is made up of small particles called atoms

• Nuclear Theory