Homework Answers
Ans: Nitrogen, Bromine , chlorine and hydrogen are diatomic molecules. Nitrogen, bromine and chlorine are di atomic molecules because they are octet in diatomic. Hydrogen get helium configuration when it is in diatomic.
Arrange these elements in order of increasing electron affinity: Sr, N, Si, P, Ga, Al.
Arrange these elements in order of increasing electron affinity: Sr, N, Si, P, Ga, Al.
Identify the elements that are liquid at room temperature. Cl Ga Br Rn Ca Hg Cu
Identify the elements that are liquid at room temperature. Cl Ga Br Rn Ca Hg Cu
8. (4 points) Use the following elements to answer the questions below: Sr, N, Si, P,...
8. (4 points) Use the following elements to answer the questions below: Sr, N, Si, P, Ga, Al a. Arrange the atoms in order of decreasing radius. b. Arrange the atoms in order of decreasing metallic character.
21. What are the 8 diatomic elements? What does it mean to be diatomic? Answer the...
21. What are the 8 diatomic elements? What does it mean to be diatomic? Answer the following questions about groups and periods in the periodic table 22. What element is in group 4 period 5? 23. How many elements are in period 4? 24. How many elements are in period 6? 25. How many metals are in group 14? 26. How many gaseous elements are there? 27. How many elements exist in the liquid state at room temperature? 28. Why...
3. How many electrons are in the outermost, valence, level of these atoms? Sr Ne Ga...
3. How many electrons are in the outermost, valence, level of these atoms? Sr Ne Ga CI e 1 A
51. Consider the four elements: iodine (l), rubidium (Rb), strontium (Sr), chlorine (Cl). (3pts) a. Identify...
51. Consider the four elements: iodine (l), rubidium (Rb), strontium (Sr), chlorine (Cl). (3pts) a. Identify which elements are likely to form cations, and which are likely to form anions. b. Which ion(s) would be positive, and which would be negative? c. Which ion would have the largest relative ionic radius and why? Explain your answer in terms of atomic structure.
The pH of a solution of Sr(OH)_2 solution is 7.68. Calculate the concentration of Sr(OH)_2.
The pH of a solution of Sr(OH)_2 solution is 7.68. Calculate the concentration of Sr(OH)_2.
Write the equation for the ionization of Sr(OH)2 Calculate the following for a 0.022 M Sr(OH)2...
Write the equation for the ionization of Sr(OH)2 Calculate the following for a 0.022 M Sr(OH)2 solution A. pH B. pOH C. [H3O^+] D. [OH- ]
Identify the elements that have a complete octet. ОХе Li OH OAr ОСІ
Identify the elements that have a complete octet. ОХе Li OH OAr ОСІ
Which of these elements is most electronegative ? K Ga Br
Which of these elements is most electronegative ? K Ga Br
Identify the elements that are liquid at room temperature. Cl Ga Br Rn Ca Hg Cu
8. (4 points) Use the following elements to answer the questions below: Sr, N, Si, P, Ga, Al a. Arrange the atoms in order of decreasing radius. b. Arrange the atoms in order of decreasing metallic character.
21. What are the 8 diatomic elements? What does it mean to be diatomic? Answer the following questions about groups and periods in the periodic table 22. What element is in group 4 period 5? 23. How many elements are in period 4? 24. How many elements are in period 6? 25. How many metals are in group 14? 26. How many gaseous elements are there? 27. How many elements exist in the liquid state at room temperature? 28. Why...
3. How many electrons are in the outermost, valence, level of these atoms? Sr Ne Ga CI e 1 A
The pH of a solution of Sr(OH)_2 solution is 7.68. Calculate the concentration of Sr(OH)_2.
Identify the elements that have a complete octet. ОХе Li OH OAr ОСІ
Which of these elements is most electronegative ? K Ga Br
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