The heaviest known alkaline earth metal is radium, atomic number 88. Find the atomic numbers of the as yet undiscovered next two members of the series.

Q: Write the complete long hand electron configuration for the hypothetical element, Jn, which has an…

A: Atomic number = 166   Electronic configuration =   1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14…

Q: Answer the following question regarding atoms of the following elements As, Br, Ca, Ga, K List…

A: Given Element = As ,Br ,Ca,  Ga, k  Metallic Character  Metallic character represent to loose a…

Q: The graph at the right shows the atomic radius for the19 elements in the periodic table.(a) Describe…

A: a.The edge of an atom's orbital determines its size. Orbital boundaries, on the other hand, are…

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: Explain why elements in the same group have similar properties.

A: The periodic table gives the arrangement of atoms in the order of increasing atomic numbers. There…

Q: Part A The elements with atomic numbers 34 and 52 have similar chemical properties. Based on their…

A: The chemical properties of an atom depend on the electronic configuration of the atom. The…

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

A: Transition metals = Transition metals are the elements which has partially filled d orbitals.…

Q: An element 'X' has three shells .Its valence shell contains 4 electrons. The element is * and the…

A: To find: Determination of the given element

Q: For lithium atom, there is a large increase from the first ionization energy to the second…

A: Introduction: Ionization energy is least amount of energy that is required for removing one electron…

Q: Place the following elements in order of decreasing atomic size: bismuth, bromine, neon, cesium,…

A: In periodic table, in a period , from left to right size of the atom decreases and in a group, from…

Q: Following the periodic trend presented in class, place the following elements in order from smallest…

A: Find the solution below

Q: Write the electronic configuration of the element of atomic number 12, and sketch a labelled energy…

A: Welcome to bartleby!

Q: What are the observed periodic trends in metallic character?

A: The observed periodic trends in metallic character: The periodic trends in metallic character can be…

Q: What is the orbital diagram of the atom Lead Pb 82

A: Orbital Diagram of Pb looks like

Q: 11. The name and atomic number of your favorite metalloid is

A: Metalloids are the pure elements that has characterstic properties of both metals and non metals.…

Q: Examination of the first few successive ionization energies for a given element usually reveals a…

A:

Q: atomic mass Moving from left to right across across period 3, electrons populate the same shell (3s…

A: In periodic table, elements are arranged in such a way that in going from left to right in a…

Q: Which of the followings is an isoelectronic series?

A: ions or atoms that are having same number of electrons present on it is termed as " isoelectronic…

Q: What do you think is the reason for a decreasing atomic radius within one period

A: Atomic radius :- The distance between the centre of the nucleus and outermost shell in which valance…

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: Consider the following elements – O, F, Na, Mg and Al. -What is the first criterion you would use to…

A: The order of size of the atoms given to us can be determined as follows:

Q: give some similarities that exist among the elements of the group 1

A: Group 1 in periodic table consists of following elements H Li Na K Rb Cs Fr

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

A:

Q: (a) Predict the atomic number of the (as yet undiscovered) alkali-metal element in the eighth…

A: Periodic table: Periodic table are the series of elements where the elements are arranged according…

Q: What do the values for ionization energy tell us about reactivity of the elements (both metals and…

A: The question is based on the concept of ionization energy. we have to explain the meaning of value…

Q: From left to right across the periodic table, atomic radii tends to decrease. This is best explained…

A: From left to right across the periodic table, atomic radii tends to decrease. This is best explained…

Q: The chart below shows the relationship between ionization energy and the increase in atomic number.…

A:

Q: . Write the complete orbital box diagram for each of the following. A) N B) Na C) S

A: The answer is given as follows

Q: Write the name of element and classify it as a metal, nonmetal, or metalloid. Sb

A: Metal: these are lie on the left side and middle of the periodic table. Metals are good conductors…

Q: List the following species in order of increasing atomic size: sodium, chlorine, aluminum, oxygen

A:

Q: Arrange the following elements in order of increasing energy  K, Rb, Al, Ga, Pb and Sr

A:

Q: What subshell is being filled for the metalloid elements?

A: Metalloids are the elements that behave metal like and have loosely bound electron in the outermost…

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 the significance of the rows and columns of periodic table.

A:

Q: Type the group number from the periodic table (1, 2, 13, 14, 15, 16, 17, or 18) that the element…

A: Interpretation - Basically here we have to write all the elements which are belongs to the periodic…

Q: List the number of valence electrons for each family, and explain the relationship between the…

A: Since we only answer up to 3 sub-parts, we will answer the first 3. Please resubmit the…

Q: Give the general electron configuration for the elements in Group VA, where [NG] represents the…

A: Here we are asked to give the general electron configuration for theelements in Group VA

Q: For the successive ionization of an atom of nitrogen, which ionization step would the first large…

A:

Q: 8 Ionic compounds have high melting points because:  A.    They are strong conductors of…

A:

Q: Describe the trend in ionization energy as you move across the periodic table and down the periodic…

A: Ionization energy refers to the amount of energy needed to remove an electron from an atom in…

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: What would we do if we don't know the atomic number of the element?

A: The identity of a chemical element can be well established by means of the electrons presents into…

Q: Predict the properties of the element #117 . You 8 will have to look for relevant information for…

A: The element, Tennessine has an atomic number 117.  It belongs to Group 17 (halogen family) and 7th…

Q: Predict the atomic number of the (as yet undiscovered) element in the seventh period that is a…

A: The atomic number of the element ( as yet undiscovered) in the seventh period of the halogen has to…

Q: Arrange these elements in order of decreasing metallic character: Sr, N, Si, P, Ga, Al.

A: The metallic character is related with the chemical properties of metals. These chemical properties…