Question

1. Identify the 2 ions that have the following ground state electron configurations of [Ne]

- F-

-Fe2+

-O2-

-H+

-Fr+

2. Consider the isoelectronic ions F− and Na+.

Using the equation Zeff=Z−S and assuming that core electrons contribute 1.00 and valence electrons contribute 0.00 to the screening constant, S, calculate Zeff for the 2p electrons in both ions.

Express your answers as integers. Enter your answers numerically separated by a comma.

2b. For isoelectronic ions, how are effective nuclear charge and ionic radius related?

-As nuclear charge (Z) increases, ionic radius increases.

-As nuclear charge (Z) increases, ionic radius decreases.

3. Rank the following ions in order of decreasing radius: F−,Cl−,Br−,I−, and At−. Use the periodic table as necessary.Rank from largest to smallest radius. To rank items as equivalent, overlap them.

At-, F-, Br-, I-, Cl-

4.The following ions contain the same number of electrons. Rank them in order of decreasing ionic radii.

Rank from largest to smallest radius. To rank items as equivalent, overlap them.

Cl-, P3-, S2-, Ca2+, Sc3+, K+

5a.

Based on position in the periodic table and electron configuration, arrange these elements in order of decreasing Ei1.

Rank the elements from highest to lowest ionization energy. To rank items as equivalent, overlap them.

Na, F, Li, N, B, O

5b.

Examine the following set of ionization energy values for a certain element. How many valence electrons does an atom of the neutral element possess?

IONIZATION STEP IONIZATION ENERGY (kJ/mol)

Eil 1012

Ei2 1903

Ei3 2912

Ei4 4956

Ei5 6273

Ei6 22233

Ei7 25997

Enter your answer numerically as an integer.