8) Barium has 56 protons and about 81 neutrons in its nucleus. The first ionization energy of barium is 5.21 eV. a) Draw a picture representing first ionization of barium b) Estimate the size of barium

Q: 7.26 Define atomic radius. Does the size of an atom have aprecise meaning? Explain.

A: To find: Definition of atomic radius.  Does the size of an atom have a precise meaning? Explain

Q: 9.22 Predict a possible monatomic ion for Element 117 Given the spherical models below, which should…

A: Element 117 would fall in Group 7A, the halogens. The monatomic ion for this element would maybe be…

Q: What is meant by pauli’s exclusion principle?

A: A question about Pauli's exclusion principle.

Q: The actual ionization energy of He is 2372.3 kJ/mol. Which of the following can be said about the…

A: We need to describe the shielding effect in helium.

Q: Explain how you determine the 4 quantum numbers for the element Sb

A: A question based on structure of atom that is to be accomplished.

Q: Which of the following set of quantum numbers are NOT allowed?

A: To describe the electron in atom quantum numbers are used  There are four quantum numbers Principal…

Q: 8.2 Distinguish between a boson and a fermion. Provide examples of each type of particle.

A: We have to discuss the distinguished between a boson particles and fermion  with example.

Q: 7.125 How do ionization energies change with increasing atomic number (a) down a group of elements…

A: Ionisation energy (IE) : The ionisation energy is defined as the amount of energy to remove the most…

Q: How would you rank the following elements in the order of increasing size: S, Si, O, Mg, and F?

A: Variation of atomic size in groups :- In a group from top to bottom atomic size increases because…

Q: List all of the possible quantum numbers for n = 5.

A: Principle quantum number is represented by n and for an orbital ns, the principal quantum number is…

Q: How much energy does it cost to ionize a hydrogen atom that is initially in the n=8 state? State…

A:

Q: Why is energy of 1s electron lower than 2s electron?

A:

Q: Would you expect an anion to be larger or smaller than the corresponding atom, and why?

A: An anion is formed when a gaseous neutral atom attains electrons.

Q: 7.47 Two atoms have the electron configurations 1s 2 2s 2 2p6 and 1s 2 2s 2 2p6 3s 1 . The first…

A: The ionization energy with one of the given electron configurations has to be match,

Q: Define the term principal quantum number?

A: Quantum numbers are used to describe the position and energy of the electron in an atom. There are…

Q: 6.90 Define the following terms and give an example of each: lanthanides, actinides.

A: The given terms lanthanides and actinides has to be defined.

Q: Canvas Ā Question 50 The spheres below represent Li, Be, B, and F (not necessarily in that order).…

A: Atom is made up of protons , neutrons and electrons.Nucleus of an atom consist of protons and…

Q: 6.34 What is the maximum number of electrons in an atom that can have the following quantum numbers?…

A: a) The maximum number of an electron can be given by 2n2 The maximum number of electron = 2(2)2 The…

Q: Q1A: Find the four quantum number for Mg12.

A:

Q: What is the number of electrons in a 36Kr atom with the quantum number ml = 1?

A: We need to calculate the number of electrons in a 36Kr atom with the quantum number ml = 1. We know…

Q: If a shell contains a maximum of 32 electrons, what is the principal quantum number, n?

A:

Q: Write the electron configuration of a xenon core.

A: The element given is Xenon.

Q: An electron cannot have the quantum numbers n=

A: Since we know that n represent principal quantum number which describes the main energy level…

Q: The first ionization energy, E, of a boron atom is 8.01 × 102 kJ/mol. What is the wavelength of…

A: Given: Ionization energy = 8.01×102 kJ/mol

Q: Would you expect the ionization energies for two isotopes of the same element to be the same or…

A: Ionization energy is the minimum amount of energy required to remove an electron from the valence…

Q: Select the correct sequence of the elements Al, K, Mg and N in order of decreasing atomic size.

A: Atomic size increases down the group in periodic table.  Atomic size decreases from left to right in…

Q: Consider the ground state of cadmium, Cd. How many electrons have l = 1 as one of their quantum…

A: The ground state electronic configuration of cadmium with atomic number 48 is shown below.

Q: How many different values of ml are possible when the principal quantum number is n = 32?

A:

Q: Galium (Ga) is an element in group III with atomic number 31. By referring to the Periodic Table,…

A: Ionisation energy is amount of energy required to remove electrons from outermost shell of an atom.

Q: Explain the concept of Heisenberg uncertainty principle?

A: Heisenberg uncertainty principle fixes a certain fundamental limit on the accuracy of determining…

Q: The first ionization energy of lead is E, = 715.4 kJ/mol. What is the longest wavelength of light…

A: Given : First ionization energy of lead = 715.4 KJ/mol = 715400 J/mol Since number of atoms of Pb in…

Q: 6 List all the possible quantum numbers for an electron in the

A:

Q: List the following particles in order of decreasing size: K1+, Ar, S2-, Cl1-, Ca2+   And explain why…

A: order of decreasing size = S-2 > Cl-1 > Ar > K+1 > Ca2+      S-2 Cl-1 Ar K+1 Ca2+…

Q: On the basis of the Pauli exclusion principle, the structure of the periodic table of the elements…

A: Orbitals are the space around the nucleus where there is a high probability to find an electron. The…

Q: 6. Write the max number of electrons in a. d orbital d sublevel

A: d subshell have 5 orbital. Each orbital can accommodate maximum 2 electron. So 5 orbital can…

Q: The energy required to ionize rubidium is 403 kJ/mol. What wavelength of light, in units of nm, is…

A: We are required to calculate the wavelength of light required to ionize the rubidium given that it…

Q: elements

A:

Q: 2. Write the short-hand notation electron configurations for the following: a. Na b. S С. Р

A: In multipart question we solve first three sub-parts according to Bartleby guidelines. Short hand…

Q: What is the Quantum Number for 33rd e?

A: Quantum numbers is a set of four numbers which give all information of an electron present in an…

Q: Calculate the energy, in joules, required to ionize a hydrogen atom when it's electron is initially…

A: