An unidentified element is known to have an electron configuration, [X] ns2, in its ground state. This element must be in the same family as O radon (Rn) Orubidium (Rb) O arsenic radium (Ra) O lead

Q: IE₁ = 1012 kJ/mol; IE2 = 1900 kJ/mol; IE3 = 2910 kJ/mol; IE4 = 4960 kJ/mol; IE5 = 6270 kJ/mol; IE6 =…

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

A: Lanthanides and actinides  are f-bolck elements.

Q: What is the electron configuration of Rb +? A   [Ne] B   [Ar] C   [Kr] D   [Xe1]

A: The atomic number of Rubidium is 37. It belongs to 5the period and IA group of the periodic table…

Q: Atoms of which element have existed for the longer period of time hydrogen sodium iron iodine

A: A question about stability of atom, which is to be accomplished.

Q: What is the Pauli Exclusion Principle?

A: Electronic arrangement of atoms and molecules is given by several principles.

Q: Part A Of the following, which element has the highest first ionization energy? O Na O AI O CI O P A

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Q: In order to complete the quantum mechanical picture, a 4th quantum number called the spin quantum…

A: Spin quantum number is related to the spin of an electron.An electron assumed to be spinning…

Q: 50) It takes 208.4kJ of energy to remove 1 mole of electrons from an atom on the surface of rubidium…

A: As you have asked only for the Q.50, Hence we are solving for the same.   According to the question,…

Q: Table: Some Properties of the Halogens Electron Melting Point (°C) Element Atomic Configuration…

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Q: Pick the atom with the smallest atomic radius from the possible choices. Sn Rb Sr Sb

A: The given elements: Sn Rb Sr Sb I These elements belong to the same period i.e. period 5. The atomic…

Q: emitted when an electron decays from the n=6 to the n=1 energy level?

A: We will use relation with  quantum number and frequency.

Q: Select the elements that are paramagnetic in the ground state. Ca Ne Li Cd Au N Zn

A: To find the elements that are paramagnetic in the ground state. The given elements are: Ca Ne Li Cd…

Q: " The electron configuration can also be represented by writing the symbol for the occupied subshell…

A: The electronic configuration can be written using three basic rule 1. Aufbau principle.2. The…

Q: 2. 1st ionisation energy (kJ/mol) First lonisation Energy of the Group 1 elements 600 500 400 300 4…

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Q: Use the notation to represent a tin ion having the same number of electrons as anatom of the isotope…

A: Isotopes: Those species having same number of electron and proton but different number of neutron.…

Q: Which sublevel in the second principal quantum number is represented by the following graph?

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Q: What does The Pauli exclusion principle state?

A: Quantum number: It is defined as packet of energy that is associated for each electron in an orbit.…

Q: On a separate piece of paper (or tablet) diagram the bohr model of Florine. Use a periodic table to…

A: Atomic number of fluorine is 9. The electrons circulate around the nucleus in the orbits.

Q: In what Period and Group of the periodic table would you find the element with the electron…

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Q: Identify the subshell in which electrons with the following quantum numbers are found: n=4, I=2 O 3f…

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Q: [Ne] 3s Examine the orbital diagram for the ground state electron configuration of sulfur. Choose…

A: The ground state orbital diagram of the sulfur atom is shown below We have to identify why the…

Q: An element with the electron configuration [Xe] 6s24f145d3 would belong to which class on the…

A: In the periodic table, the elements present in 1, 2, and 13 to 18 groups are known as representative…

Q: Which ion would you expect to be smaller in size—I− or Br−? Explain.

A: Among the elements in the periodic table, the size of the elements increases as we go down the…

Q: Which of the following describes the element Br? Choose all that apply. Oreacts vigorously with…

A: Bromine is a halogen and belongs to group 17 and period 4 of the periodic table. The chemical symbol…

Q: Give the quantum number of Sulfur

A: Given question is : Give the quantum number of Sulfur = ?

Q: QUESTION 4 Claudia has an atom whose electron configuration is 1s2 2s22p 3s2 3p¹. Which of the…

A: The arrangement of electrons in the space around the nucleus in an atom is called electronic…

Q: A new element has been created in the National Chemistry Laboratory and you are on the task force to…

A: ELEMENT The quantity of protons an element has defines it. The protons in an element's atoms are all…

Q: Which of the following metals would be expected to have the smallest atomic radius? A) Cesium (Cs)…

A: In periodic table, on moving left-right the element's electronegativity as well as atomic number…

Q: The element fluorine (F) has a valence-level electron configuration of s²p5. Which other elements…

A: The objective of the question is to identify which elements among sulfur, oxygen, chlorine, neon,…

Q: What Group would all of these elements be part of? Hint: look at the Valence Electrons ( The…

A: Elements                 atomic number  Li(lithium)                         3 Na(sodium)…

Q: Put the elements in order from lowest (1) to highest (6) electronegativity. a > K Aluminum Copper…

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Q: Which statement is INCORRECT? Rb is larger than Rb* O Ra is larger than Ba Mg is larger than P Ca2+…

A: Atomic radius is the distance between center of nucleus and outer most shell In period atomic radius…

Q: Group of elements in which the d orbitals are being filled: lanthanide series O noble gases…

A: Group of elements in which d orbitals are being filled.

Q: Which sublevel in the second principal quantum number is represented by the following graph? 30 20…

A: Sublevel s in the second principal quantum number is correct because in the graph it shows the…

Q: What element has 6 electrons in its highest energy shell? O Magnesium Oxygen Nitrogen O Aluminum

A: Here we are asked which element has 6 electrons in its highest energyshell from the given options.

Q: Ionization energy tends to increase from left to right on the periodic table. There are two…

A: In an atomic model with a single electron (Bohr model), the electron strength depends only on the…

Q: For the elements 4X, 9Y, 17Z, which elements are in the same group? O 4X and 9Y O 9Y and 17Z O 4X…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…