Exam 11: Atomic Theory: the Quantum Model of the Atom

Which of the following statements is/are incorrect? (i)The Bohr model successfully predicts energies in the ultraviolet portion of the hydrogen spectrum (ii)The Bohr model successfully predicts energies in the infrared portions of the sodium spectrum (iii)The Bohr model associates electron energy with the radius at which an electron orbits the nucleus (iv)The Bohr model does not explain the failure of an electron to lose energy as it travels a circular path around a nucleus

List the atomic numbers of all atoms that are smaller than atoms of fluorine.

Which of the following elements has the Lewis symbol below,where Sy represents the elemental symbol?

The maximum number of electrons that can be held in the 4f sublevel is...

Consider the following periodic table. In what numbered section would the elements used in semiconductors be found?

Which of the following elements has the Lewis symbol below,where Sy represents the elemental symbol?

In a given energy level,which of the following types of orbitals will have the lowest energy?

Which of the following pairs of atomic numbers belong to elements whose atoms have the highest occupied energy level electron configuration of the form ns²np⁴?

Identify the best description of an s orbital:

Which of the following statements is/are correct? (i)Principal energy levels are identified by the letters s,p,d,and f (ii)Principal energy levels appear in both the quantum mechanical model of the atom and the Bohr model of the atom (iii)In general,n = 1 is at lower energy than n = 2,and n = 2 is lower than n = 3,and so on (iv)The principal energy level is related to electron spin