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

The Bohr model of the atom assumes that which of the following quantities for the electron in a hydrogen atom is/are quantized? i.Speed ii.Direction of spin axis iii.Energy iv.Radius of its orbit

Which of the following is not a property of metals?

At any instant an electron orbital may be in which occupancy state? i.Unoccupied ii.Occupied by one electron iii.Occupied by two electrons iv.Occupied by 2,6,10,or 14 electrons

Which of the following is the best definition of first ionization energy?

Atomic size varies with position in the periodic table primarily because of what influence(s)? i.Highest occupied principal energy level ii.Increasing number of electrons with increasing atomic number iii.Nuclear charge

What do elements in a family or group of main-group elements have in common?

Complete the statement with the best choice: In hydrogen,the ground state:

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

Which of the following provides the best explanation for the many chemical similarities between sodium and potassium?

The order of increasing principal energy levels in an atom is related to which of the following sequences?