Exceptions to the trend of increasing first ionization energy and increasingly negative (i.e., more favorable) electron affinity occur in group 15 elements.  What is the reason for this?

Q: which is the Period 2 element with-the Smallest atomic radius ? A.) Li D.) Ne C.) Be D.) Ra

A: Li, Be and Ne belong to the second period of the periodic table. Whereas, Ra belongs to the 7th…

Q: 1. The first, second and third ionization energies of an element are 490 kJ mol", 4560 kJ mol and…

A: a

Q: Which element would have the greater electron affinity, S or O? Explain using the concepts of…

A: S (Sulphur) Atomic number = 16                   Electronic configuaration = 1s2 2s2 2p6 3s2 3p4   O…

Q: Explain how to write an electron configuration for a transition metal cation. Is the order of…

A: The electron configuration of a transition metal cation is written by removing the electrons first…

Q: Explain why atomic radius decreases as we move to the right across a period for main-group elements…

A: In the main-group elements, the atomic radius decreases on moving from left to right across a period…

Q: Separate Li, 5sCs, 19K, 10Ne elements in order according to their increasing ionization energies

A: Ionization energy is the amount of energy required to remove the outermost electron from the neutral…

Q: Describe the trends of the element in a periodic table below and explain your answer: i)Electron…

A: i) Electron affinity : The amount of energy released when an electron is added to the neutral…

Q: What are the properties of the element flerovium (the period 7 element in group 14)?

A: Flerovium Flerovium is an atomic number 114 chemical element with the symbol Fl. Flerovium, which is…

Q: Mention 3 general characteristics of the s-block elements that distinguishes them from the other…

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Q: most negative electron affinity?

A:

Q: Explain factors influencing the trends in the first ionisation energy and atomic radius, Across a…

A: Explain factors influencing the trends in the first ionisation energy and atomic radius, Across a…

Q: Sulfur, B, element 16, tends to form a 2- ion. Write the electron configuration of neutral S and of…

A: Concept- The total number of electrons that an atom either gains or loses in order to complete it's…

Q: A. A main group element with the valence electron configuration 2s 2p is in periodic group It forms…

A: The octet rule: According to the octet rule, the atoms form molecules by losing, gaining, or sharing…

Q: The ionisation energy generally increases across a period. However, there are two exceptions to the…

A: Period 3 sees an uptick in ionization energy as the nuclear charge rises, but the shielding of the…

Q: Consider the following statements about first ionizationenergies:(i) Because the effective nuclear…

A: In the question, we are given three statements out of which we have to select the correct option…

Q: Arrange each of the following lists of elements in order ofdecreasing electron affinity:a. Na, Li, K…

A: Solution-  Na,Li,K -Atomic no of Li → 3 , 1s2 2s1Atomic no of Na → 11 , 1s2 2s2 2p6 3s1Atomic no of…

Q: Does the reaction of a main-group nonmetal oxide in water produce an acidic or a basic solution?…

A: All nonmetals form covalent oxides with oxygen that react with water to form acids (or) with bases…

Q: Describe how to write an electron configuration for a transition metal cation. Is the order of…

A: The electron configuration of a transition metal cation is written by removing the electrons first…

Q: it is clear that the first ionization energy of He is very large.  Would you expect the first…

A: We have  helium and H-( Hydride ion) H- has lower first ionisation energy than He.

Q: The ionisation energy generally increases across a period. However, there are two exceptions to the…

A: The ionisation energy increases across a period because effective nuclear charge is increasing so…

Q: What is the full electron configuration (by filling order, spdf notation) of potassium nitrate,…

A: Answer - Electron configuration - Electron configuration is the distribution of electrons of an atom…

Q: Unlike the elements in groups 1A and 2A, those in group 3A do not show a regular decrease in first…

A:

Q: Arrange the following isoelectronic series in order of increasing atomic radius: CI" , Sc³+, s²-,…

A: The question is about arranging the given Isoelectronic Series in order of Increasing atomic radius…

Q: Arrange the following in order of increasing atomic radius:  N, F, P Thank you

A: The following is to be arranged in order of increasing atomic radius:  N, F, P

Q: What is the abbreviated electron configuration of element Platinum (Pt)?

A:

Q: A. A main group element with the valence electron configuration 4s°4p* is in periodic group It forms…

A: The group number of an element can be determined by the valence electron configuration. The group…

Q: . Write the noble gas configuration for the described element: a. the (as yet undiscovered) alkaline…

A: (a)

Q: Arrange in order of increasing ionization energy. (a) the Group 1A elements H, Li, and Cs (b) the…

A: Ionization energy: The amount of energy required to remove an electron from the outermost shell of…

Q: The electron affinity of each group 5A element is more positive than that of each corresponding…

A: The electron affinity is the tendency to attract the shared pair of electrons. The size of the…

Q: 21. Order the following atoms in increasing first ionization energy: Cr, O, P, Rb

A:

Q: The first element of every group behaves differently from the other elements in the same group.…

A: Lithium shows anomalous behavior because it has the smallest size in the group. Since it has the…

Q: The electron affinities, in kJ>mol, for the group 1B and group2B metals are as follows: (a) Why…

A: Electron affinity means the amount of energy released when one electron is added to the uppermost…

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.…

Q: arrange following species in order of decreasing first ionization energies Si, S, Na, Ne

A: The answer to the following question is-

Q: The atomic number of an element is 73. Is this element diamagnetic or paramagnetic? Explain why? (No

A:

Q: Use the periodic table to arrange the following elements in order of increasing first ionisation…

A: Since the element P and S belong to same period 3 and the element O belong the the period above them…

Q: 15. The first four ionization energies of an element are approximately 579 kJ/mol, 198ð kJ/mol, 2963…

A: Answer: Minimum energy required to remove the most loosely bounded electron from an isolated gaseous…

Q: What is the atomic number of the as yet undiscovered element in which the 8s and 8p electron energy…

A:

Q: The electron affinity of each group 5A element is more positive than that of each corresponding…

A: The periodic table can be classified in four blocks; s-block, p-block, d-block and f-block. This…

Q: For two hypothetical elements X and Y, the following ionization energies value are given: Ionization…

A: Ionisation energy is defined as the energy required to remove electron from the gaseous form of the…

Q: Group 4A elements have much more negative electronaffinities than their neighbors in groups 3A and…

A: Electron Affinity is energy change taking place when one electron is added to an atom which is…

Q: Given the following information, identify the group from the periodic table that contains elements…

A: There are many trends in inorganic chemistry. These trends are atomic size, reactivity, metallic…

Q: The ionisation energy generally increases across a period. However, there are two exceptions to the…

A: This question is based upon the concept of ionization energy. First step is to explain about…

Q: The electron affinities, in kJ/mol, for the group 1B and group2B metals are as follows: (a) Why are…

A: (a) The group 2B elements are zinc (Zn), cadmium (Cd) and mercury (Hg). The ground state…

Q: On the basis of periodic trends, choose the larger atom in each pair (if possible):(a) Sn or I (b)…

A: Given: (a) Sn or I (b) Ge or Po (c) Cr or W (d) F or Se