Describe the relationship betweena. the radius of a cation and that of the atom from which formsb. the radius of an anion and that of the atom from which it forms

Q: A. An element with the valence electron configuration 3s² would form a monatomic ion with a charge…

A: A) As we know the element with valence electronic configuration 3s2 is Magnesium (Mg) which is form…

Q: The reactivity of an atom arises from(A) the average distance of the outermost electron shell…

A: The electrons present in outer shells or the valence electrons decide the chemical nature of atoms.

Q: One of the most famous of the obsolete theories of the hydrogen atom was proposed by Niels Bohr. It…

A:

Q: How much energy is required to excite an electron from a n3 ⟶⟶ n5 within the hydrogen atom?

A: The answer to the following question is -

Q: If the exact outer limit of an isolated atom cannot be meas-ured, what criterion can we use to…

A: The atomic radius of an isolated atom cannot be determined because the exact outer limit is unknown.…

Q: Explain why cations are smaller and anions are larger in radii than their parent atom?

A: A cation is formed after loosing electrons. So, after losing its electron the cation has more…

Q: why would certain Adams more strongly hold onto their electrons? Describe the exceptions and why…

A: There are attractive forces present between the nucleus and the electrons present in the shell.…

Q: Which experience a greater effective nuclear charge: the valence electrons in beryllium or the…

A: Beryllium and nitrogen are present in the second period of the periodic table.

Q: 7.46 The first and second ionization energies of K are 419 and 3052 kJ/mol, and those of Ca are 590…

A: The first ionisation energy of Ca (590kJ/mol) is greater than that of K (419kJ/mol). Reason =  Both…

Q: The anion exerts a smaller influence on the radius of the cation. Explain.

A: The positively charged ions are called cations which have fewer electrons than protons. On the other…

Q: Both the electron affinity and the ionization energy of chlorine are higher than the corresponding…

A: The amount of energy needed for removal of an electron from an atom is called ionization energy,…

Q: Explain the difference in first ionization energy between Li (520 kJ/mol) and Be (899 kJ/mol

A: This question is asking about the first ionization energy difference between Li and Be. We know it…

Q: What is the electron configuration (1s, etc.) for phosphorous (P)? Identify the valence electrons by…

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the…

Q: atom possess? (c) An atom has the electron configuration 1s22s22p 3s23p2. How many valence electrons…

A: The question is based on the concept of atomic structure. we have to describe about the valence…

Q: The ionic substance strontium oxide, SrO, forms from thereaction of strontium metal with molecular…

A: The given question can be solved on the basis of the prior knowledge of the solid-state. a)…

Q: Consider the following equation:Ca+1g2 + e-¡Ca1g2Which of the following statements are true? (i) The…

A: Electron Affinity is defined as the energy released when an electron is added to the atom in the…

Q: Arrange the following atoms in the order of increasing ionization energy: From lowest to highest…

A: For the ionization energy of elements, there is a trend which is a general prediction of ionization…

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: Which elements on the periodic table tend to have the lowest first ionisation energy? What is the…

A: The amount of energy required to eject the most loosely bound electron of an isolated atom in the…

Q: Notice that the center atom and the two corner atoms along a diagonal all touch. What is the length…

A: Given:  I) A cubic unit cell with edge length = a II) Radius of the atom = r

Q: sing the orbital diagram for the atoms below, which one(s) is(are) diamagnetic? Mark a rite the…

A: The question is based on the magnetic properties of the atoms. we have to identify which of the…

Q: 1. Provide the COMPLETE electron configuration of the chemical species below: Please note that your…

A: The electronic configuration of the following species is as follows:

Q: Why the first ionization energy of boron (B) is less than that of beryllium (Be) and why the first…

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

Q: Which has higher ionization energy: IE1 or IE2 of sodium? Why? Ans: Snonaupiinoo notoale a noi orh…

A: 1) Highest ionization energy of Sodium among IE1 and IE2: Ionization energy: The total amount of…

Q: (a) Account for formation of the following series of oxidesin terms of the electron configurations…

A: The Oxidation state of Oxygen atom is -2. K2O The elements present are: K and O. Oxidation state…

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: 1. All of the common noble gases are monatomic and low-boiling. Their boiling points in °C are:…

A: The only inter-molecular force present in inert (noble) gases is weakest van der Waals force. It…

Q: You read the following statement about two elements X andY: One of the elements is a good conductor…

A: Metallic character states to the level of reactivity of a metal or we can say that the tendency of…

Q: Rank the following in terms of decreasing first ionization energies? O Ne > N>O> B> Be O B> Be > O>…

A: Rank the decreasing order of first ionization energies ?

Q: If the energy of the H2, covalent bond is –4.48 eV, what wavelength of light is needed to break that…

A: Given data,The energy of the H2 covalent bond is -4.48eV.The minimum energy of the photon to break…

Q: The electronic configuration of elements of Group V (5A) ends with ns2 np5 ns2 nd7 ns2 np2 ns2 nd5…

A: The electronic configuration of an element indicates how many electrons are distributed in atomic…

Q: For ionization energy, when is it more unfavorable? How does this relate to the ∆H ?

A: Unfavourable ionization energy means greater amount of energy requirements.  This is possible due to…

Q: If the radius of atom X is greater than the radius of atom Y, then it is also likely that

A: Given that the radius of the atom X is greater than the atom Y

Q: Consider the following set of successive ionization energies: IE1=578kJ/mol IE2=1,820kJ/mol…

A:

Q: Hydrogen is an unusual element because it behaves in someways like the alkali metal elements and in…

A: (a)Electron affinity is the amount of the energy released on the addition of an electron to a…

Q: Which of the following chemical equations is connected tothe definitions of (a) the first ionization…

A: Ionization energy is the amount of energy required to remove an electron from an isolated gaseous…

Q: Coulombic Potential Energy states that magnitude of attraction or repulsion between two charged…

A: Columb's law gives relation between charges and the distance between them. The formula can be shown…

Q: Which of the following sets of species is/are isoelectronic? I. S2-, CI", K* II. Na*, Mg2+, A13+ II.…

A: Isoelectronic species :-  The species having the same number of electrons are called as…

Q: Arrange the following chemical species in order of increasing atomic radius. Explain your…

A: Atomic radii increases as we move down the group in the periodic table and decreases as we move…

Q: The electronic configuration of elements of Group V (5A) ends with * O ns2 np2 O ns2 nd7 ns2 nd5

A: Electronic configuration denotes distribution of electrons in the subshell of atom

Q: A. If an element with the valence configuration 4s'3d10 loses 2 electron(s), these electron(s) would…

A: Element first looses electron from outermost shell and then from the n-1 shell Element accepts…

Q: 1. All of the common noble gases are monatomic and low-boiling. Their boiling points in °C are: Ne,…

A:

Q: Atomic radius generally increases as we move O down a group and from left to right across a period O…

A: * Answer : Correct option is   • down a group and from right to left across the period.   *…

Q: Arrange these atoms and ions in order of increasing radius: S2, cr, Ar. O A. g2- < Cr <Ar O B.…

A: Given anions and atom are :  S2-, Cl-, Ar  Arrange the following in order of increasing radius = ?…

Q: The first ionization energy of helium is 2370 kJ mol¯1, the highest for any element. (a) Define…

A: a. The ionization energy of a chemical species (an atom or molecule), is the energy required to…

Q: Which quantity must be determined experimentally inorder to determine the bonding atomic radius of…

A: a.  We cannot determine the bonding atomic mass using the the distance from the nucleus where the…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.