Homework Answers
Add Answer to:
Q9
(d) 4 +2 Answer the questions below about the elements A and B, which have...
Q2: b) Three elements have the electron configurations: 1s' 2s2 2p 3s 3p 1s2 2s2 2p6...
Q2: b) Three elements have the electron configurations: 1s' 2s2 2p 3s 3p 1s2 2s2 2p6 3s2 1s2 2s2 2p6 3s 3p 4s. The first ionization energies of these elements (not in the same order) are: 0.419, 0.735, 1.527 MI/mol (MJ for mega Jouls). The atomic radii are 1.60 A°, 0.98 A°, 2.35 A°. Identify the three elements and match the appropriate values of ionization energy and atomic radius to each configuration Element Atomic Radius lonization Energy 1. 2. 3.
Which list incudes elements with the most similar chemical properties? B) Cr, Pb, Xe 37) D)...
Which list incudes elements with the most similar chemical properties? B) Cr, Pb, Xe 37) D) N, O, F O,S, Se C) As the elements in Period 3 are considered in order of increasing atomic number, there is a general decrease in C) atomic mass D) atomic radius A) first ionization energy B) electronegativity Element K reacts with chlorine to form an ionic compound that has the formula XCl,. To which group on the Periodic Table coul element X'belong? A)...
1. Name the neutral element(s) in the fourth period of the periodic table which has: a)...
1. Name the neutral element(s) in the fourth period of the periodic table which has: a) 7 valence electrons (name two elements) b) [Ar] 4s23d104p2 configuration c) the alkaline earth metal d) the largest atomic radius e) the halogen f) diamagnetic electron configurations (name all elements)
20. An atom of which of the following elements has the smallest ionization energy? A. CI...
20. An atom of which of the following elements has the smallest ionization energy? A. CI C. Si B. P DS 21. An atom of which of the following elements has the largest second ionization energy? A. Cs С Ро B. Pb D. Ba Q89. 22. Which of the following forms the most stable anion in the gas phase? A. CI (electron affinity -349 kJ/mol) B. S (electron affinity = -200 kJ/mol) CO (electron affinity = -141 kJ/mol) D. C(electron...
Using a periodic table, fill in each of the following blanks with the most appropriate answer....
Using a periodic table, fill in each of the following blanks with the most appropriate answer. a) The alkali earth metal with the largest atomic radius is. b) All of the elements in group 7 have valence electrons with the general electron configuration. c) The element in period 4 with the largest ionization energy is. d) An atom of K is (smaller/larger) than an atom of F.
I need help with all these questions. Please and thank you 1. An element has the...
I need help with all these questions. Please and thank you
1. An element has the following electronic configuration: [Kr]4d5552 (a) What period does it belong to? (b) What is its group number? (Use group numbers from 1 to 18) (c) What kind of element is it? (Main group metal, transition metal, metalloid, nonmetal?) (d) How many unpaired electrons are there in an atom of this element? (a) What element has this electronic configuration? 1s 2s 2p 3s2 (b) What...
Compare the elements Na, B, Al, C with regard to the following properties: a) Which element...
Compare the elements Na, B, Al, C with regard to the following properties: a) Which element has the largest atomic radius? b) Which element has the largest electron affinity? c) What element is expected to have the largest ionization energy?
12. Suppose that a stable element with atomic number 120, symbol Z, has been discovered. a....
12. Suppose that a stable element with atomic number 120, symbol Z, has been discovered. a. Write the ground-state electron configuration for 2, showing only the valence-shell electrons. b. Would Z be a metal or a nonmetal? Explain in terms of electron configuration. c. On the basis of periodic trends, would Z have the largest atomic radius in its group or would it have the smallest? Explain in terms of electronic structure. d. What would be the most likely charge...
identify the elemets described in each box each box contains description of elements and I have...
identify the elemets described in each box
each box contains description of elements and I have to figure what
they are and place them in a puzzle
12—Hydrogen is already filled in for you. 21 A. is a gas at room temperature A. atoms are larger than those of element B. Has 1 electron in the outer energy level code #4 B. Alkali metal, silver color JA. is the most reactive element in its A. Is an alkali metal family...
2. (20 points) Answer the following questions based on the given ground state electron configurations Ne]3S23p,...
2. (20 points) Answer the following questions based on the given ground state electron configurations Ne]3S23p, [Ne]3S2?3p*, [Ne]3S?3p* a) Identify the above elements b) Arrange the element in order of decreasing atomic radius. Explain your reasoning in complete sentences c) Arrange the elements in order of increasing first ionization energy. Explain your reasoning in complete sentences. (Hint: be careful with the exceptions) d) In one of the element, there is a huge jump between the third ionization energy and the...
Q2: b) Three elements have the electron configurations: 1s' 2s2 2p 3s 3p 1s2 2s2 2p6 3s2 1s2 2s2 2p6 3s 3p 4s. The first ionization energies of these elements (not in the same order) are: 0.419, 0.735, 1.527 MI/mol (MJ for mega Jouls). The atomic radii are 1.60 A°, 0.98 A°, 2.35 A°. Identify the three elements and match the appropriate values of ionization energy and atomic radius to each configuration Element Atomic Radius lonization Energy 1. 2. 3.
Which list incudes elements with the most similar chemical properties? B) Cr, Pb, Xe 37) D) N, O, F O,S, Se C) As the elements in Period 3 are considered in order of increasing atomic number, there is a general decrease in C) atomic mass D) atomic radius A) first ionization energy B) electronegativity Element K reacts with chlorine to form an ionic compound that has the formula XCl,. To which group on the Periodic Table coul element X'belong? A)...
20. An atom of which of the following elements has the smallest ionization energy? A. CI C. Si B. P DS 21. An atom of which of the following elements has the largest second ionization energy? A. Cs С Ро B. Pb D. Ba Q89. 22. Which of the following forms the most stable anion in the gas phase? A. CI (electron affinity -349 kJ/mol) B. S (electron affinity = -200 kJ/mol) CO (electron affinity = -141 kJ/mol) D. C(electron...
Using a periodic table, fill in each of the following blanks with the most appropriate answer. a) The alkali earth metal with the largest atomic radius is. b) All of the elements in group 7 have valence electrons with the general electron configuration. c) The element in period 4 with the largest ionization energy is. d) An atom of K is (smaller/larger) than an atom of F.
I need help with all these questions. Please and thank you
1. An element has the following electronic configuration: [Kr]4d5552 (a) What period does it belong to? (b) What is its group number? (Use group numbers from 1 to 18) (c) What kind of element is it? (Main group metal, transition metal, metalloid, nonmetal?) (d) How many unpaired electrons are there in an atom of this element? (a) What element has this electronic configuration? 1s 2s 2p 3s2 (b) What...
12. Suppose that a stable element with atomic number 120, symbol Z, has been discovered. a. Write the ground-state electron configuration for 2, showing only the valence-shell electrons. b. Would Z be a metal or a nonmetal? Explain in terms of electron configuration. c. On the basis of periodic trends, would Z have the largest atomic radius in its group or would it have the smallest? Explain in terms of electronic structure. d. What would be the most likely charge...
identify the elemets described in each box
each box contains description of elements and I have to figure what
they are and place them in a puzzle
12—Hydrogen is already filled in for you. 21 A. is a gas at room temperature A. atoms are larger than those of element B. Has 1 electron in the outer energy level code #4 B. Alkali metal, silver color JA. is the most reactive element in its A. Is an alkali metal family...
2. (20 points) Answer the following questions based on the given ground state electron configurations Ne]3S23p, [Ne]3S2?3p*, [Ne]3S?3p* a) Identify the above elements b) Arrange the element in order of decreasing atomic radius. Explain your reasoning in complete sentences c) Arrange the elements in order of increasing first ionization energy. Explain your reasoning in complete sentences. (Hint: be careful with the exceptions) d) In one of the element, there is a huge jump between the third ionization energy and the...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago