Che 121 Problem Paper 4 Chemistry Worksheet With Answers (Page 2 of 7) in pdf

Che 121 Problem Paper 4 Chemistry Worksheet With Answers Page 2

7. Write the abbreviated electron configuration for the elements in question 6.

(a) [He] (b) [Kr]5s

(d) [Ar]4s

(e) [Rn]

8. Which of the elements in question 6 do you expect to have the highest first

ionization energy?

8. Which of the elements in question 6 do you expect to have the smallest

atomic radii?

barium or rubidium (its actually barium)

10. Give an example of an element that has:

a. 1 electron in a s subshell

b. A half filled p subshell

c. Belongs to the f block

d. A completely filled d subshell

e. Has 5 valence electrons

f. Has the fourth shell as its valence shell

g. Is a nonmetal

h. Is a metalloid

(a) Na (b) N (c) U (d) Zn (e) N (f) K (g) F (h) Ga

11. Predict the number of electrons that would be gained or lost during ionic

bond formation for each of the following elements. In each case give the

name of the ion formed.

a. Element number 35

b. Rb

c. P

(a) 1e

gained, bromide ion (b) 1e

lost rubidium ion (c) 3e

gained

phosphide ion

Che 121 Problem Paper 4 Chemistry Worksheet With Answers Page 2