3. In general, as you go down a column in the periodic table, will the interaction between the nucleus and valence electrons get stronger or weaker? Explain. While you can simply memorize all the different periodic trends, many can be understood in terms of the two competing factors in Coulombs law ( Zeff vs. distance, r).

Q: atomic mass 121.76 mol electronegativity 2.05 kJ 103.2 mol electron affinity kJ 834. mol ionization…

A: The amount of energy required to remove an electron from the outermost shell of a neutral atom is…

Q: Which neutral atom is isoelectronic with each of the following ions: F, Zr, Mn, I, Pb²+? Express…

A: Which neutral atom is isoelectronic with the given ion---

Q: To which group of the periodic table does the general valence electron configuration ns2np4…

A: ns2np4 means 2 electrons in outer s orbital and 4 in outer p orbital

Q: Consider the imaginary element X. Which would you expect to have the largest radius and why? 1. X*…

A: ->when element loss electron then cation of element form.But protan are same.

Q: Handwritten answer: Using your own words and drawings explain the formation of a 1) Tg"(2p:) MO and…

A: Answer: The designation g & u is given on the basis of centre of symmetry. A center of symmetry…

Q: Is NO2-1 polar, non polar, or ionic?

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Which species has the smallest atomic radius: 1. Li 2. Be 3. F 4. C

A:

Q: Which of the following species has the smallest ionic radius? A) s2- B CI- C) A13+ D Na+ E) Mg2+

A: All the elements given in the option fall in the same period. S2- and Cl- ions gain electron to…

Q: Given the following ionic radii: Mn2+ (96 pm), Mn3+ (65 pm), Mn7+ (46 pm), Cl− (181 pm), Cl7+ (27…

A: Given that, Ionic radii of Mn3+  = 65 pm Ionic radii of Cl- = 181 pm We have to find radius ratio…

Q: Although it is helpful to know that many ions have the electronarrangement of a noble gas, many…

A: Given ions, (a) Ti4+ (b) Mn2+ (c) Pb2+ (d) Te2- (e) Zn2+.

Q: Arrange the following in their increasing size with the help of slater’s rule and also give…

A: Slater rule is used to calculate the effective nuclear charge in the elements. As the atomic number…

Q: Be sure to answer all parts. The American chemist Robert S. Mulliken suggested a different…

A:

Q: Which of the following species has the lowest ionic radius? а. Ве Be 2+

A: Left to right in the periodic table, atomic size is decreases. Up to down in the periodic table,…

Q: Describe the electron-Sea Model?

A: When the positive charged metal atom interacts with the freely electrons by the electrostatic…

Q: Which of the following relationships between  ionic radii is not necessarily valid? r(F–) >…

A: Ionic radius is the distance between the atomic nucleus and outermost shell having electrons of an…

Q: Which of the following species has the 'second smallest' radius:  Ti2+, V3+, K+, Br-, Cl-

A: Atomic radius: The distance between the nucleus and the outermost electron is known as the atomic…

Q: Which neutral atom is isoelectronic with each of the following ions: Ga³+, Ca²+, P3+, K+, Pb²+?…

A: Which neutral atom is isoelectronic with each of the following ions ::

Q: c. Based on part 2 (b and e), is PF3 molecule polar or non-polar? Is molecule polar or non-polar?…

A: We balance chemical equations because in order to follow the law of conservation of mass, the number…

Q: Arrange Ru3+, Cu2+, Zn, Ti4+, Cr3+, and Ni2+ in order of increasing radius

A:

Q: 1. What are prime and sub quantum numbers? With examples. 2. What is the octet rule? With examples.…

A: 1. The principal quantum number, n, describes the energy of an electron and the most probable…

Q: Arrange the following anions in order of increasing ionic radii: F-, O2-, N3-, P3-, As3-, Ge4-

A: Ionic radius increases as we go down the group in periodic table.  Because additional shells are…

Q: What amount of energy (kJ) is needed to completely ionize 2.78 mol hydrogen atoms?

A: The value of ionization energy of Hydrogen atom is = 1314 kJ/mol It means for 1 mole of  Hydrogen…

Q: Nitrogen (N), phosphorus (P), and arsenic (As) are three elements that almost universally form ions…

A: Atomic number of N is 7 and represented as 7N. Atomic number of P is 15 and represented as 15P.…

Q: Arrange the following atoms in order of increasing effectivenuclear charge experienced by the…

A: Given Arrange the following atoms in order of increasing effectivenuclear charge experienced by the…

Q: Arrange these ions according to ionic radius. Ca2+, K+, Cl-, S^2-, P^3-

A: Rule: A nucleus of strong or high positive charge pulls its valence electron cloud towards itself…

Q: Consider the ions Sc3+, CL-, K+, Ca2+, and S2-. Match these ions to the following pictures that…

A: To find: Matching of the given ions with the given picture.

Q: 9. Based on the noble gas configuration below, how many valence electrons does an atom have? [Kr]…

A:

Q: 3) For the following species, predict the required characteristics by filling the given 17CI, 17Cl,…

A: Group is the vertical column of the perodic table. Period is the horizontal row of the perodic…

Q: La) Full electronic configuration Q: X: | 1.b) Noble gas configuration Q: X: L.e) Partial Orbital…

A:

Q: In the compound aluminum oxide, which is the cation? a. Al+3 b. O-2 c. Al d. O   Which has the…

A:

Q: Describe the location of electrons; describe how electron placement determines chemical bonding,…

A: The electron which is negativily charged species present in the hollows space of the atom and rotate…

Q: Among the substances below, which can be thought of as cations bonded together by mobile electrons?…

A:

Q: Determine which of the following species would have this electron configuration: (02s)…

A: According to the molecular orbital theory the atomic orbitals combine to form molecular orbital. The…

Q: Consider the A2X4 molecule depicted here, where A and X are elements. The A – A bond length in this…

A: Atomic radium always measures the atom's size or in general, it is the main distance of nucleus and…

Q: How many valence electrons are in the ion NO3-? (7

A: • We need to determine the total valence electrons in NO3- ion    • Nitrate, NO3- ion contains one…

Q: Arrange the following from largest to smallest atomi radii: K+, S2-, Ca2+, Cl-, P3-

A: Arrange the following from largest to smallest atomic radii: K+, S2-, Ca2+, Cl-, P3-

Q: Using Slater’s rules, calculate the Z* acting upon the first electron to be ionized from Al, Al1+ ,…

A:

Q: Arrange the atoms and/or ions in the following groups in order of decreasing size. 1. S2-, Cl-, K+…

A:

Q: Consider the following table of ionization energies in kJ/mole. 2nd 3rd 4th Element Na 1 st 496 5th…

A: Ionisation energy increases across the period and decreases down the group in the periodic table.…

Q: Which of the following species has the 'second smallest' radius: Ti2+, V3+, K*, Br", CI-

A:

Q: Which ion of uranium has a noble gas electron configuration? A) U2- B) U3+ C) U6+ D) U4+ E) U2+

A: Which ion of uranium has a noble gas electron configuration?

Q: What is the maximum number of electrons that can have n = 5, l = 3 and ml = -1.

A: Given, Principal quantum number "n" value = 5 Azimuthal quantum number "l"=3 Magnetic quantum number…

Q: What is the valence shell electron configuration of the halogens? ns?np? or ns? or ns' or ns?np$ ns1…

A: Distribution of no.of electrons present in the valency shell is called as valency shell electronic…

Q: What has the highest number valence electrons: N, Ca, O, As, or I?

A: Valance electrons :-  The number of electrons present in outermost shell of atom are called valence…

Q: Which is the most stable electron configuration for copper (Cu)? O[Ar] 4s? 3d° O[Ar] 4s1 3d1o O[Ar]…

A: Atomic number of Cu is 29. The expected electronic configuration of copper according to rule is,…

Q: Which metal ion is expected to have the electron configuration, [Kr]4d4?   Hint: Remember that…

A: We have to predict the correct ion for given electronic configuration.