23. Chemistry of the Nonmetals
Main Group Elements: Periodic Trends
23. Chemistry of the Nonmetals
Main Group Elements: Periodic Trends - Video Tutorials & Practice Problems
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1
concept
Periodic Trends
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2
example
Main Group Elements: Periodic Trends Example
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3
Problem
ProblemRank the following elements in order of increasing lattice energy: S, In, K, Ba and Cl
A
Ba < In < S < K < Cl
B
Cl < S < In < K > Ba
C
Ba < K < In < S < Cl
D
Cl < In < K < S < Ba
E
In < Ba < Cl < S < K
4
Problem
ProblemWhich of the following elements will have the lowest electron affinity?
A
Cl
B
K
C
P
D
Be
E
O
5
Problem
ProblemFor Group 5A elements, the ionization energy decreases going down a group because:
A
Their atomic masses increases.
B
The highest number of their valence orbital shell increases.
C
Their metallic character decreases.
D
Their electron affinity increases.
E
The number of neutrons in their nuclei decreases.
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Additional resources for Main Group Elements: Periodic Trends
PRACTICE PROBLEMS AND ACTIVITIES (18)
- Which of the following elements is the best conductor of electricity? (LO 22.1)(a) N (b) As(c) P (d) Bi
- Consider the following oxoacids: HClO, HClO2, HClO3, and HClO4. In which oxoacid does chlorine have an oxidati...
- Complete the exercises below.Which property of the third-row nonmetallic elements might be the one depicted be...
- Select the group 4A element that best fits each of the following descriptions.b. Is the least dense semimetal
- Which element in each of the following pairs has more nonmetallic character?(a) Se or Te
- Explain why the properties of boron differ so markedly from the properties of the other group 3A elements.
- Identify the group 3A element that best fits each of the following descriptions.(b) Is stable in the +1 oxidat...
- Identify the group 3A element that best fits each of the following descriptions.(c) Is a semiconductor
- What is the most common oxidation state for each of thegroup 3A elements?
- Consider the elements C, Se, B, Sn, and Cl. Identify which of these elements:c. Is the best electrical conduct...
- Look at the properties of the alkali metals summarized inTable 22.2, and predict reasonable values for the mel...
- Assign oxidation states to each atom in each element, ion, or compound. Ag, Ca2+, BaO, H2S, NO3-, CrO42-
- What is the oxidation state of Cr in each compound? b. CrO3
- What is the oxidation state of Cr in each compound? c. Cr2O3
- What is the oxidation state of Cr in each compound? a. CrO
- What is the oxidation state of Cl in each ion? a. ClO- b. ClO2- c. ClO3- d. ClO4-
- Assign oxidation numbers to each element in the following ions. (c) C2O4 2-
- Little is known about the chemistry of astatine (At) from direct observation, but reasonable predictions can b...