Chem Lesson 2.4
8 Questions
| Total Attempts: 791
These questions deal with trends in atomic radii. look at table S if you have any questions.
Questions and Answers
- 1.An atom of which element has the largest atomic radius?
- A.
Fe
- B.
Mg
- C.
Si
- D.
Zn
- 2.Explain, in terms of atomic structure, why the elements in Group 2 have similar chemical properties. [1]
- 3.As atomic number increases within Group15on the Periodic Table, atomic radius
- A.
Decreases, only
- B.
Increases, only
- C.
Decreases, then increases
- D.
Increases, then decreases
- 4.How do the atomic radius and metallic properties of sodium compare to the atomic radius and metallic properties of phosphorus?
- A.
Sodium has a larger atomic radius and is more metallic.
- B.
Sodium has a larger atomic radius and is less metallic.
- C.
Sodium has a smaller atomic radius and is more metallic.
- D.
Sodium has a smaller atomic radius and is less metallic.
- 5.An element that is malleable and a good conductor of heat and electricity could have an atomic number of
- A.
16
- B.
18
- C.
29
- D.
35
- 6.Which list of elements from Group 2 on the Periodic Table is arranged in order of increasing atomic radius?
- A.
Be, Mg, Ca
- B.
Ca, Mg, Be
- C.
Ba, Ra, Sr
- D.
Sr, Ra, Ba
- 7.The elements in Period 5 on the Periodic Table are arranged from left to right in order of
- A.
Decreasing atomic mass
- B.
Decreasing atomic number
- C.
Increasing atomic mass
- D.
Increasing atomic number
- 8.
The data table below shows elements Xx, Yy, and Zz from the same group on the Periodic Table. What is the most likely atomic radius of element Yy?- A.
103 pm
- B.
127 pm
- C.
166 pm
- D.
185 pm
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