Use the periodic table and your knowledge of periodic trends to answer the following questions.
Which atom in each pair has the larger atomic radius?
1.Li or k
2.Ca or Ni
3.Ga or B
4.O or C
5.Cl or Br
6.Be or Ba
7.Si or S
8.Fe or Au
Which ion in each pair has the smaller atomic radius?
9.+ 2-
K OR O
10.2+ -
Ba or I
11.3+ 3-
Al or P
12.+ +
K or Cs
13. 2+ 3+
Fe or Fe
14. - 2-
F or S
Which atom in each pair has the larger ionization energy?
15.Na or O
16.Be or Ba
17.Ar or F
18.Cu or Ra
19.I or Ne
20.K or V
21.Ca or Fr
22.W or Se
Write the chrage that each of the following atoms will acquire when it has a completer set of valence electrons.
23. O
24. Na
25. F
26. N
27. Ca
28. Ar
29.Define atomic radius?
30.Why do atoms get smaller as you move across a period?
31.Why do atoms get larger as you move down a group?
32. What is the periodic trend for electronegativity?
33. Name four important families on the periodic table.
34.Explain why noble gases are inert and do not form ions.
35.Define the term electronegativity.