Atomic Structure and Theory

What does the term "electron cloud" refer to in Schrödinger's model?

• A fixed path of electrons

• A dense nucleus

• An area where electrons are likely to be found

• A solid shell around the nucleus

What is the primary difference between Bohr's model and Schrödinger's model?

• Bohr's model uses electron clouds, Schrödinger's uses orbits.

• Schrödinger's model uses electron clouds, Bohr's uses orbits.

• Both models use electron clouds.

• Both models use fixed paths.

What was Lloyd Quarterman responsible for designing and constructing?

• A nuclear reactor

• A uranium isotope responsible for the atom bomb

• A particle accelerator

• A solar panel

What was the purpose of isolating uranium (U 238) in the Manhattan Project?

• To create a new element

• To develop nuclear medicine

• To create the atom bomb

• To power submarines

What does the varying density of the electron cloud indicate?

• The size of the nucleus

• The likelihood of finding a proton

• The likelihood of finding an electron

• The likelihood of finding a neutron

What is the main focus of modern atomic theory?

• The structure of molecules

• The behavior of gases

• The composition and structure of atoms

• The properties of liquids

What did Dalton's theory state about the creation of atoms?

• Atoms can be created.

• Atoms cannot be created.

• Atoms are always created.

• Atoms are sometimes created.

Which subatomic particle is not found in the nucleus of an atom?

• Proton

• Neutron

• Electron

• All of the above are found in the nucleus

In a neutral atom, the number of electrons is equal to the number of _______.

• Neutrons
• Orbits
• Protons
• subatomic particles

What is the charge of a proton?

• Negative

• Positive

• Neutral

• Variable