1. Define the following terms and give an example of each: transition metals, lanthanides, actinides.

Q: Which subshell is represented by the lanthanides family? Which subshell is represented by the…

A: Lanthanides and actinides  are f-bolck elements.

Q: Rank the following elements in order of increasing metallic character: K, P, Rb, Ca, Cl, and Ge.…

A: The metallic character increases on moving top to bottom in a group and decreases on moving left to…

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: Give the complete electron configuration for the following elements: A.) F B.) Mg C.) Se D.) Ti

A: given elements F, Mg , Se and Ti  We have write electron configurations for them. Number of…

Q: Sub-Red Dwarf stars known as Brown Dwarfs are actually called

A: Brown dwarfs are often thought of as "stillborn" stars, as they never acquired the mass necessary to…

Q: What causes the lines in these spectra? Why are the colors of the lines different? Suggest a reason…

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

Q: e smallest atomic radius?

A:

Q: Which main group atom would be expected to have the lowest second ionization energy?

A:

Q: Are nonmetals to the left or right of the metalloids?

A: The metals are left to the line (except of Hydrogen which is a non metal),non metal is right to the…

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: 7.8 What is a main group element? Give names and symbols of four main group elements.

A: In the modern periodic table, the elements have been arranged according to their atomic numbers. The…

Q: Which atom has the highest first ionization energy?

A: From the given electronic configuration the highest first ionization energy can be shown below

Q: Sketch the orbital diagram for the abbreviated configurations of the following: a) Ga b) Ni c) Pb

A:

Q: 2)Why did the observed chemistry of thallium mislead Mendelev to place the group 13 element (Tl) in…

A:

Q: QI what are the four quantum numbers for and cli3

A: Quantum numbers can be defined as the set of four number which helps in determining the information…

Q: What element is designated by the orbital diagram below? (Note that core electrons are not shown.)

A:

Q: How many electrons are there in one atom of 71Ga?

A: The isotope can be represented as  ZYX where Y is the mass number and Z is the atomic number.mass…

Q: Use the rare gas notation to write the electron configuration of Zr4+

A: Noble gases or the group 18 elements are known as rare gases. They are used in writing the electron…

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: Explain how astronomers are able to tell which elements are present in distant stars by analyzing…

A: Astronomers are able to tell which elements are present in distant stars by analyzing the…

Q: draw orbital diagrams for the ground states of terbium, Mn2+, S2- and Ag.

A: The atomic number of Mn is 25. Hence Mn2+ will be formed by loosing 2 electrons Hence the orbital…

Q: What is the orbital diagram for the atom Francium Fr 87

A: The orbital diagram is the pictorial descriptions of the electrons in an atom and filling of…

Q: Which of these isoelectronic ions, Ba2+, Cs*, or La3+, is (a) the largest? (b) the smallest? Explain…

A: The size of atoms or ions changes across the period and down the group. The size of isoelectronic…

Q: What is likely the cause of the radius measured being half the radius?

A: The distance from the nucleus to the farther most point where the electron density can be located in…

Q: What is the highest energy orbital for Vanadium and Iron(II)?

A: Introduction: Transition elements are the elements having partially filled d orbitals. Vanadium and…

Q: The atomic number of an element is 73. Is this element diamagnetic or paramagnetic?

A: Whenever two electrons are paired together in an orbital, or their total spin is 0, they are…

Q: Classify each element as a metal, nonmetal,or metalloid.

A: Boron shows both metal and non metal characteristics, it behaves like a  non-metal when it reacts…

Q: explain why there are 14 members of each f block series

A: no. of orbitals in f block series: 7 in f orbitals, we can can have maximum of 14 electrons

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

A: Electron configuration of Magnesium:

Q: what are the electron configuration and orbital diagram for yttrium.   thank

A: The distribution of electrons in different orbitals is known as electronic configuration of atom .…

Q: Explain Electron Spin and the Pauli Exclusion Principle?

A: A quantum property of electrons is known as electron spin. A form of angular moment is electron…

Q: 2. Explain why the ground-state electron configurations of Cr and Cu are different from what we…

A: The atomic number of chromium is 24. Write the electronic configuration of Chromium. Cr = 1 s2 2 s2…

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: For transition elements, describe the trends in atomic radius as we:a. move across a period in the…

A: The measure of size of atom of an element is atomic radius. It is distance from nucleus center to…

Q: 4. What does isoelectronic mean? Provide an example.

A: The outer shell electrons of an atom is called the valence shell electrons for that atom.   These…

Q: How do the periodic trends in metallic character compare to those forionization energy?

A: solution- periodic trends in metallic character compare to those for ionization energy is , Metal…

Q: Explain why vanadium (radius = 134 pm) and copper (radius = 128 pm) have nearly identical atomic…

A: The electronic configuration of Vanadium = [Ar] 3d3 4s2 And of Copper = [Ar]3d104s1. On moving from…

Q: Refer to their electron configurations to explain why copper is paramagnetic while its 1+ ion is…

A:

Q: 9) Explain to me why the atomic radii decrease as you move across a period rather then up a group or…

A: Across a period the atomic radii is governed by effective nuclear charge. And across a group it is…

Q: Give 5 diamagnetic elements except for noble gases

A:

Q: Write the electron configuration for Ag

A: Ag loses 1 electron and become a positively charged ion Ag+. Thus, Ag has 47 electrons . While Ag+…

Q: Explain the periodic trend in atomic size from left to right across the periodic table. What is the…

A: On moving from left to right across a period, the atomic radius decreases, because nucleus of the…

Q: 1) Write the electron configuration of Tungsten using a) long method b) shorthand method 2) Write…

A: 1) Tungsten whose electronic configuration is to be reported. 2) 11th electron in 5f orbital whose 4…

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

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

Q: Provide the orbital diagram and electron configuration for each element:  -- K -- Rb -- Cs -- Fr…

A: Provide the orbital diagram and electron configuration for each element:

Q: A M2+ ion has four electrons in the 3d subshell and is derived from a metal in the first transition…

A: Electronic configuration of Transition metals in general = 3dn 4s2 (except for chromium and…

Q: True or False: a.)Cesium atom is a paramagnetic element but Cs+ and Cs- are not. b.)The…

A: Interpretation: We have to predict whether the statement is true or false.