Which orbital(s) is/are partially filled in chromium atoms?
Choose one answer.
A. 4s
B.3p
C. 3s
D.3d
E. a and di

What is the definition of a "valance electron"?
Answer:

The primary reason that an ionic compound of formula KCI2 does not form is:
Choose one answer.
A. The lattice energy is smaller than that of KCI
B. The electron affinity of CI is endothermic
C. The bond energy of Cl2 is prohibitively large
D. The total ionization energy to reach K+² is too high
E. all of the above

What is the electron configuration of vanadium using the noble gas configuration?
Choose one answer.
A. [Ar]4s²3d³
B. [Ne]4s²4d³
C. [Ar]4s 24d³
D. [Ar]4s²4p³
E. [Ar]3d⁵

Which orbitals are partially filled in Zr atoms?
Choose one answer.
A. 5s
B.4p
C.4s
D.4d
E. a and d

Screening accounts for:
Choose one answer.
A. differences in deBroglie wavelength
B. different numbers of neutrons and protons in the nucleus
C. the nuclear charge of different atoms
D. electron-electron repulsions
E. the nuclear charge actually experienced by an electron

Which of the group 14 elements are metalloids?
Answer:

Which ionic compound will have the smallest lattice energy?
Choose one answer.
A. KCI
B. NaCI
C. CaCl2
D. MgCl2
E. FeCl3

How many unpaired electrons are there on a Mn+² ion?
Choose one answer.
A.3
B.4
C.5
D.6
E.7

lonization energy decreases going down a family (column) because:
Choose one answer.
A. valence orbitals become more stable
B. screening becomes more effective
C. orbitals are larger
D. electron affinities are smaller
E. none of the above

Which orbital(s) is/are partially filled in chromium atoms? Choose...