REVIEW - PERIODIC TRENDS
1. -D-Which of the following properties is not characteristic of metals?
a) They are malleable.
b) They are good conductors of heat.
c) They are ductile.
d) They are dull in appearance.
2. -D-Which of the following elements is not a nonmetal?
a) fluorine
b) oxygen
c) nitrogen
d) antimony
3. -A-Which is the most reactive of all the elements?
a) fluorine
b) sodium
d) hydrogen
c) oxygen
4. -B-In Mendeleev's periodic table, the horizontal rows are called
a) groups
b) periods
c) families
d) columns
5. -D-Which group of the periodic table contains the least reactive elements?
a) alkali metals
b) halogens
c) actinides
d) noble gases
6. -C-Which of the following is the most metallic element?
a) oxygen
b) iron
c) potassium
d) neon
7. -B-Which of the following is the most non metallic element?
a) silicon
b) fluorine
c) nitrogen
d) helium
8. -A-Which of the following elements have atoms with four electrons in their outer energy levels?
a) carbon
b) oxygen
c) neon
d) boron
9. -B-An element that has an electron configuration of 1s2 2s22p6 3s23p5 is one of the
a) alkali metals
b) halogens
c) noble gases
d) transition metals
10. -D-An element that has an electron configuration of 1s2 2s22p6 3s23p6 4s2 3d5 is one of the
a) alkali metals
b) halogens
c) noble gases
d) transition metals
11. -A-Which of the following elements has the largest atomic radius?
a) beryllium
b) carbon
c) nitrogen
d) oxygen
12. -C-Which of the following elements has the smallest atomic radius?
a) sulfur
b) selenium
c) oxygen
d) tellurium
13. -C-Which of the following elements has the smallest first ionization energy?
a) strontium
b) calcium
c) barium
d) magnesium
14. -A-Which of the following elements has the largest first ionization energy?
a) bromine
b) potassium
c) arsenic
d) calcium
15. -A-Which of the following elements has the highest electron affinity?
a) chlorine
b) silicon
c) sodium
d) phosphorus
16. The following is a block of elements from the periodic table:
A
B
C
D
E
F
G
H
I
J
K
L
-I-a) which element has the largest atomic radius?
-D-b) which element has the smallest atomic radius?
17. Which atom in each of the following pairs has the higher ionization energy?
-Au-a) Cs or Au
-S-b) S or P
-Al-c) Mg or Al
-Rn-d) Rn or At
-Zn-e) Zn or Cu
-Sr-f) Rb or Sr
18. In each of the following pairs of elements, which has the higher ionization energy?
-O-a) O or S
-Se-b) Ge or Se
-Mg-c) Mg or Rb
-Xe-d) Xe or Cs
-Ne-e) Ne or Kr
-P-f) P or Si
19. Which element in the following sets loses an electron most readily; and why?
-Li-a) B, Li or F
-K-b) K, Li or Na
20. Which of the atoms has the lareest atomic radius?
-Na-a) Cl, Si or Na
-As-b) P, N or As
21. Which element is the most metallic?
-Ca-a) Mg, Ca or Be
-K-b) K, Br or Zn
22. Which group of elements is the most metallic?
Group 1 - Alkali metals
23. An element has the following ionization energies:
1st
7.6 eV
nd
2
l 5.0 eV
3rd
80.1 eV
Which group is the element a member of?
Group 2 – Alkaline Earth metals or any element that has only 2 valence electrons
24. Which group has the highest electronegativity?
Group 17 - Halogens
25. Which ion with a 3+ charge is isoelectronic with Ne?
Al3+
26. Write electron configurations for:
a) F
1s2 2s22p5 or [He] 2s22p5
b) O2- 1s2 2s22p6 or [He] 2s22p6
c) Cr
1s2 2s22p6 3s23p6 4s2 3d4 or
[Ar] 4s2 3d4
d) Pb
1s2 2s22p6 3s23p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p2 or [Xe] 6s2 4f14 5d10 6p2
27. Complete the chart below:
Symbol
Ion Symbol
# p+
#e-
# n0
Al
[ Al 3+ ]
13
10
14
Cr
[ Cr 3+ ]
24
21
28
Br
  1- 

  Br

   
35
36
45
O
  2- 

  O

   
8
10
8
Fe
[ Fe 3+ ]
26
23
30