(a) What is the trend in first ionization energies as one proceedsdown the group 7A elements? Explain how this trendrelates to the variation in atomic radii. (b) What is the trendin first ionization energies as one moves across the fourthperiod from K to Kr? How does this trend compare with thetrend in atomic radii?

Q: Compare and contrast the physical properties of elements in group 1,2 7

A: Let's contrast the physical characteristics of the elements in the periodic table's Group 1 (alkali…

Q: According to general trends in the periodic table, predict which element in each of the following…

A: According to general trends in the periodic table, which element in each of the given pairs has the…

Q: (1) What is the valence electron configuration for the krypton atom? (2) What is the valence…

A:

Q: What correlation, if any, exists for the Period 2 elements between group number and the number of…

A: The number of electrons in an element is equal to its atomic number. In order to become stable an…

Q: On the basis of periodic trends, choose the more metallic element from each pair (if possible).(a)…

A: The metallic character decreases across the period and increases down the group. a. The Ge and Sn…

Q: 24. Which member of the following pairs has the larger radius? Provide your reasoning. (d) Nat or K…

A:

Q: Despite the expected decrease in atomic size, there is an un-expected drop in the first ionization…

A: Ionization energy is the energy that is required to remove an electron from a gaseous atom or ion to…

Q: Oxygen (8O) and argon (18A) are both gases. Oxygen combines readily with other elements, but argon…

A: Oxygen combines easily with other elements. But argon does not.

Q: Arrange in order of increasing ionization energy. (Use the appropriate symbol to separate…

A: The ionization energy is the energy required to remove an electron from an atom or ion in the…

Q: 4. (a) Why does the atomic radius increase going down a group (column) of the periodic table? (b)…

A: Answer 1: Atomic radius increases going down a group (column) of the periodic table because of the…

Q: Indicate the physical state for each of the following elements at 25 °C and normal pressure.…

A: (a) barium (Ba) : Physical state = Solid  Metal element.  (b) boron (B)  Physical state = Solid…

Q: For each pair of elements, indicate which one you would expect to have the greater first electron…

A: Electron affinity - Minimun amount of energy released when an extra electron added to an isolated…

Q: Consider the elements in Column 15 in the periodic table, with nitrogen at the top (2nd period) and…

A: The elements of group 15 generally dissolve and do not react with water. However there are some…

Q: When a nonmetal oxide reacts with water, it forms anoxoacid with the same nonmetal oxidation state.…

A: Since there are multiple sub-parts in the question , only the first 3 sub-parts of the question are…

Q: 34. According to general trends in the periodic table, predict which element in each of the…

A: The general trend of metallic character is that  1. On moving from top to bottom in group , metallic…

Q: On the basis of periodic trends, determine which element in each pair has the higher first…

A: Since we answer only up to 3 sub-parts, we'll answer the first three. Please resubmit the question…

Q: Write equations that show the process for (a) the first twoionization energies of lead and (b) the…

A:

Q: Place the following elements in order of increasing first ionization energies: Si, P, S From lowest…

A: Ionization energy is the minimum amount of energy that an isolated, gaseous atom in the ground…

Q: The following trend for alkali metals is correct, except:    A)First ionization energy ; Li < Na < K…

A:

Q: The prefix eka- comes from the Sanskrit word for “one.”Mendeleev used this prefix to indicate that…

A: Eka-manganese was the name given to the element which is below manganese in the periodic table.

Q: Does the reaction of a main-group metal oxide in water pro-duce an acidic solution or a basic…

A: Main group elements are the elements of s and p block. The element which belongs to second period…

Q: (a)&#160;Why does xenon react with fluorine, whereas neon does not?&#160;(b)&#160;Using reference…

A:

Q: Valence electrons in an atom of phosphorus are closer to the nucleus than the valence electrons of…

A: we know effective nuclear charge on the electron is given byZeff=Z-S ,where Z= number of proton,S…

Q: explain why the atomic radii of Nb is greater than that of V, but the radius of Ta is NOT greater…

A: The atomic radii of elements are determined by several factors, including the number of electron…

Q: Write condensed electron configurations for the following atoms and ions, using appropriate…

A: Given :- symbol of anion = Te2-  To write :- its condensed electron configuration

Q: Arrange the following elements in order of atomic radius (from smallest to largest): Smallest atomic…

A: Solution: N, F, Ne - second-period elements. N, As, Bi - is 15 group of elements.  We know that On…

Q: Some versions of the periodic table show hydrogen at the topof Group 1A(1) and at the top of Group…

A: Hydrogen is an element that is present in Group 1A (or) group 1 of the periodic table. Halogens…

Q: The atomic radii of alkaline earth metals are smaller than those of thecorresponding alkali metals.…

A: Alkaline earth metals are group 2 elements of the periodic table while alkali metals are the…

Q: Arrange the following elements in order of atomic radius (from smallest to largest): Smallest atomic…

A: The elements given are Na, Si, Rb, C and O.

Q: (a) Like first member of other groups, boron also differs from rest of the members of its group.…

A: Boron belongs to group 13 in modern periodic table. Other element of this group are Al,In,Ga etc. In…

Q: Write condensed electron configurations for the following atoms and ions, using appropriate…

A: We have to write the Condenses electron configuration of the given atoms or ions

Q: Elemental C has one of the highest atomization energies on the periodic table at 717 kJ/mol. Explain…

A: Possible reasons for High ionisation energy are larger effective nuclear charge, smaller size and…

Q: In some forms of the periodic table, hydrogen is placedin Group I; in others, it is placed in Group…

A: Hydrogen is placed separately in the periodic table.It shows similarities to both group 1 and…

Q: Due to periodicity, which element would you expect to behave most like molybdenum? (a)   Tungsten…

A: The periodicity is repetition of elements with similar properties after certain regular intervals…

Q: Which of these ionization processes requires the highest amount of energy?          (A) Na(g)  -->…

A: Ionization energy is defined as the energy required to remove the outermost electron from an…

Q: Which of these ionization processes requires the most energy?           (A) Na(g)  -->  Na+(g)  +…

A: The solution is as follows :

Q: Arrange the following elements in order of increasing atomic radius: Al, B, C, K, and Na?

A: In periodic table, down the group atomic radius increases due to increase in number of shells.…