sci q2 m1

Who proposed the probability that electrons will be found in certain locations

around the nucleus of an atom?

• A. Ernest Rutherford

• B. Erwin Schrodinger

• C. J.J. Thomson

• D. Neil’s Bohr

Which model describes electrons as orbiting around a central nucleus?

• A. Bohr

• B. Plum Puddin

• C. Rutherford

• D. Quantum Mechanical

Which orbital designation has the highest energy?

• A. 2s

• B. 2p

• C. 3d

• D. 4s

What occurs when an electron moves from high energy level to low one?

• A. another electron goes from a low energy level to a high one

• B. the atom moves faster

• C. colored light is given off

• D. this process is not possible

It is the region of space around the nucleus where the electron is most probable

to be observed.

• A. Electrons

• B. Neutrons

• C. Orbital

• D. Proton

Heisenberg found that a tiny particle’s site and movement cannot be exactly

recognized, this can be often called the uncertainty principle. What particle is

demonstrated by the uncertainty principle?

• A. Neutrons

• B. Electrons

• C. Orbitals

• D. Protons

Which model shows the possibility of an electron to be discovered in several

locations around the nucleus?

• A. Bohr’s Model

• B. Dalton’s Atomic Model

• C. Quantum Mechanical Model

• D. Uncertainty Principle

n the quantum mechanical model, three physicists led the event of a much

better model of the atom, except:

• A. Erwin Schrodinger

• B. Louie de Broglie

• C. Neils Bohr

• D. Werner Karl Heisenberg

How many quantum numbers are necessary to designate a particular electron in an atom?

• A. 1

• B. 2

• C. 3

• D. 4

The p-orbital can accommodate a maximum of __________ electrons.

• A. 2

• B. 3

• C. 6

• D. 10