Valence electrons in an atom of phosphorus are closer to the nucleus than the valence electrons of aluminum because: (A) P has a greater effective nuclear charge and a greater shielding than Al. (B) P has a greater effective nuclear charge with the same shielding as Al. (C) P has the same effective nuclear charge with greater shielding than Al. (D) P has the same effective nuclear charge and the same shielding as Al.

Q: (a) The electronic configuration of a certain element known as element A, is            1s22s22p3.…

A: Hello. Since your question has multiple parts, we will solve the first question  for you. If you…

Q: 7.5 For each pair of elements, indicate which one you would expect to have the greater first…

A: To find: The element which has the greater first electron affinity.

Q: Select the ions or atoms from the following sets that are isoelectronic with each other. (a) (b)…

A:

Q: Use the periodic table to write electron configurations for each element.(a) Al (b) Be (c) In (d) Zr

A:

Q: . Which two sets contain species that are isoelectronic with each other? (a) Li+, H- , He (b) Ca2+,…

A:

Q: Which element in each of the following sets would you expect to have the highest IE2? (a) Na, Mg, Al…

A: The elements in a  set with  highest second ionization energy has to be selected.

Q: Choose the element with the higher ionization energy from each pair.(a) Al or In (b) Cl or Sb (c) K…

A: Chemical and physical properties of elements present in the same group which are related to their…

Q: Write the electron configuration for each element.(a) Cl (b) Si (c) Sr (d) O

A: (a) The atomic number of chlorine is 17. The electron configuration for chlorine can be written as…

Q: smallest atomic radius

A:

Q: Which element would you expect to be less metallic?(a) Sb or As(b) Si or P(c) Be or Na

A:

Q: Which one has the largest atomic radius?

A: Atomic radius is the distance from the centre of nucleus to the outermost shell of an atom. In a…

Q: 4. Calculate (A) the energy of an electron transitioning from n=5 to n=6. (B) the wavelength of…

A: For an electron undergoing a transition, the energy is calculated as: ∆E = -2.18 × 10-18…

Q: Draw the partial (valence-level) orbital diagram, and write the symbol, group number, and period…

A: Electronic configuration refers to the systematic arrangement of electrons in the various shells and…

Q: Answer ALL parts of this question. (a) Explain the following observations in first ionisation…

A: First ionization energy(IE1) is the energy required to remove the first electron from a gaseous…

Q: 1which element has the largest atomic radius  A )O B) N C)Mg 4) BE

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which element would you expect to be less metallic?(a) Cs or Rn(b) Sn or Te(c) Se or Ge

A: The elements in a modern periodic table are arranged in an increasing order of their atomic number.…

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

A: Ionization energy is the energy required to remove an electron from the outermost shell of a gaseous…

Q: (a)

A: Ionisation energy is the energy which is required to remove electron from its Valence shell

Q: 7.89 Which of the following properties show a clear periodicvariation: (a) first ionization energy,…

A: Let us analyse all the properties one by one. Ionisation  energy is  the minimum quantity of energy…

Q: Using only their location in the periodic table, rank the atoms in each set by decreasing atomic…

A: Given :  (a) Mg, Be, Ba (b) Se, Br, Cl (c) Ca, Se, Ga  we have to arrange the given atoms in order…

Q: Draw the partial (valence-level) orbital diagram, and write the symbol, group number, and period…

A: Modern periodic table has 18 groups and 7 periods. The modern periodic table is classified on the…

Q: Identify each statement as true or false: (a) Ionization energiesare always negative quantities. (b)…

A: a) ENDOTHERMIC reactionsreactant + energy ---> productshave (+) energy termEXOTHERMIC…

Q: Which is TRUE about the 3p electrons in sulfur? (A) They travel in a figure 8 orbit (B) They are…

A: Postulates of Bohr’s Model of an Atom: In an atom, negatively charged electrons revolve around the…

Q: What are ionization energy for atoms : (a) Sr (b) P (c) Rb

A: a) ionization energy of Sr = 549.5 KJ/mol b)  ionization energy of P = 1012 KJ/mol

Q: Identify each element below, and give the symbols of the other elements in its group:(a) [He]…

A: Electronic configuration- The distribution of electrons of atom in atomic orbitals.  By using…

Q: energy of calcium (in kJ mol−1) from the given data (all in kJ mol−1): ΔHf°​[CaCl2(s)] = −796…

A: Born-Haber cycle for formation of CaCl2(s) from Ca(s) and Cl2(g) is shown in image.

Q: (a) The electronic configuration of a certain element known as element E, is            1s22s22p4.…

A: ->electronic configuration also called electronic structure the arrangement of electrons in…

Q: Which of the following species are hydrogen-like? (a) He+ (b) He- (c) Li+ (d) Li +²

A: Since, Atomic number of Hydrogen = 1 If any species have 1 electron only then that species known as…

Q: rank the ions in each set in order of increasing size:  (a) V2+, V3+ (b) Rb+, K+, Cs+ (c) I-, Ba2+,…

A: In periodic table, as we move left to right the atomic size decreases due to the Zeff increases but…

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: a) Write the equation representing the 3rd ionization energy for Fe.   (b) The electron affinity…

A: The minimum amount of energy is required to remove one electron from gaseous isolated atom,called…

Q: Which element in each of the following sets would you ex-pect to have the highest IE₂?(a) Na, Mg,…

A: (a) The first ionization energy is determined by the removal of an electron from the neutral parent…

Q: 3. What is the effective nuclear charge on 3(a) the outer two electrons of B?  3(b) the inner two…

A: Given element is Boron , B Atomic number = 5 Electronic configyration : 1s22s22p1

Q: (a) Describe the trends of atomic size and ionization energy, respectively, in the Periodic Table:…

A: We have to describe the trend of atomic size and ionisation energy

Q: (2) The element with an electron configuration of 1s22s22p63s2 is in group ______and period ____.

A: Electron configuration of Magnesium:

Q: the

A: One electron removed from the isolated gaseous atom so we need energy for removing first electron…

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: Identify the specific element that corresponds to each of the following electron configurations.…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: (9) lons also of elements that do not follow the Periodic Table prediction. Which configuration(s)…

A: The electronic configuration is defined as the distribution of electrons of an atom in molecular…

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…