Chapter 3, Quiz 1

Question 1

The atomic model developed by J. J. Thomson that views atoms as spheres of positively charged material with embedded electrons

Answer 1

Plum Pudding Model

Question 2

The atomic model developed by Ernest Rutherford in which an atom is made up of tiny, dense, positively charged central nucleus surrounded by negatively charged electrons

Answer 2

Nuclear Model

Question 3

The currently accepted atomic model in which electrons are found in orbitals that are positioned around a nucleus that contains protons and (usually) neutrons

Answer 3

Quantum-mechanical Model

Question 4

The atomic model developed by Niels Bohr in which electrons travel in distinct spherical regions called energy levels at fixed distances from the nucleus

Answer 4

Bohr Model

Question 5

In the Bohr model of the atom, the regions located at fixed distances from the nucleus of an atom in which electrons are found

Answer 5

Energy Level

Question 6

The branch of physics that explores the behavior of matter and energy at the atomic and subatomic level

Answer 6

Quantum Mechanics

Question 7

A helium nucleus that is emitted from a nucleus when a radioactive isotope experiences alpha decay

Answer 7

Alpha Particle

Question 8

The dense, central portion of an atom

Answer 8

Nucleus

Question 9

A wave bundle, or particle, of electromagnetic energy

Answer 9

Photon

Question 10

The region within an atom where an electron will most probably be located; part of the quantum-mechanical model of an atom

Answer 10

Orbital

Question 11

The basis upon which a model is assessed, taking into account how well it explains or describes a set of observations and how well the model makes predictions

Answer 11

Workability