Review Questions

1 . Elements    in  a   given   period  have    the same

(A) atomic  weight

(B) maximum azimuthal   quantum number

(C) maximum principal   quantum number

(D) valence electron    structure

(E) atomic  number

2 . Arrange the following   species in  terms   of  increasing  atomic  (or ionic)  radius:

Sr, P,  Mg, Mg2+

3 . Which   of  the following   elements    has the lowest  electronegativity?

(A) Cesium

(B) Strontium

(C) Calcium

(D) Barium

(E) Potassium

4 . Arrange the following   calcium species in  terms   of  increasing  size:

Ca, Ca+,    Ca2+,   Ca3+,   Ca–,    Ca2–

5 . The order   of  the elements    in  the periodic    table   is  based   on