is Ho and Cf in group 13 of the periodic table?

Q: Explain the horizontal irregularity in size of the most com-mon ions of Period 3 elements.

A: Period 3 elements are given below,        Sodium (Na), Magnesium (Mg), Aluminium (Al), Silicon (Si),…

Q: The atoms in the formula 4CH3oH is

A: Atoms are the individual particle that combines with each other to form molecules. These molecules…

Q: To which group of the periodic table does the general valence electron configuration ns2np4…

A: ns2np4 means 2 electrons in outer s orbital and 4 in outer p orbital

Q: 3Clye = 2NCI3() N28) 2(g)

A: Given reaction with diagrammatic representation is :

Q: how many electron orbitals/shells does nitrogen have?

A: Reference: Self Introduction: According to the atomic model, a nitrogen atom has a central nucleus…

Q: A.)  What is meant by the term polarizability?                     B.)   Which of the following…

A:

Q: How does the structure of a lithium ion vary from that of a lithium atom?

A:

Q: Compare sizes: (a) K and Na (b) Li and O (c) O and O2-

A: The sizes of the given elements has to be compared.

Q: Consider an ionic compound, MX, composed of generic metal M and generic, gaseous halogen X. • The…

A:

Q: Mixing SbCl 3 and GaCl 3 in a one-to-one ratio gives a solid ionic compound of empirical formula…

A:

Q: Why is Nitrous oxide 1N2O2 is also known as laughing gas ?

A: To find: The reason for why Nitrous oxide is known as laughing gas

Q: Give the full electron configuration of Be2+.

A:

Q: True or false: The ionization energies of the Group 3A family is lower than the Group 2A family

A: Given,  The ionizatiThe ionization energieson energies of the Group 3A family is lower than the…

Q: what is be2+ valence electron configuration?

A: The atomic number of Be = 2Hence, the electron configuration of Be is: 1s2 2s2

Q: Starting with the previous noble gas, write the condensed electron configurations of the following…

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Q: schematic diagram to illustrate the separation process of Group III cations.

A: For the qualitative analysis of ions,cations are specifically divided into the the groups. Cations…

Q: Make a schematic diagram for group 3 cations

A:

Q: Write electron configuration for: a.) Ca2+ b.) Br-

A: a) Atomic number of Ca is 20  hence Ca2+ will have total 18 electron as 2+ charge => it has lost…

Q: How is F3O4 the oxide ion of Fe 3+?

A: SOLUTION: Step 1: Fe3O4 is a spinel compound. Spinel means it contains metal ion of 2 oxidation…

Q: Two of the few compounds Xenon forms are: XeO4 and XeF6. Name the two compounds.

A: The given compound of xenon are: XeO4 XeF6 In this question, the above-given compounds have to be…

Q: What are the compouds formed by the elements of Group VIIA and VIIB?

A: The elements in the periodic table are arranged in the increasing order of their atomic numbers.…

Q: 3 What is the biggest difference between the Lewis and the AO-model in terms of the localisation of…

A: Localized electrons are the bonding electrons whereas the delocalized electrons are the non-bonding…

Q: Fill in the orbital energy diagram for the nitride ion. E 2s 1s 2p

A:

Q: (b) List some properties of Group 1 elements which indicate they are all metals. (c) What valence do…

A: Here we have to write some properties of group 1 metal, valency of group 1 elements and name and…

Q: 5. Suggest a reason why the covalent radius of germanium (122 pm) is almost the same as that of…

A: The size of an atom depends on the attraction between nucleus and outermost electrons. In the…

Q: e schematics of the energy d electronic distribution of e carbon monoxide olecule, while the…

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Q: Give a description of the kinds of ions that are expected to form by group : 1A, 2A, 6A, 7A…

A: According to the long form of periodic table: Group 1 A metals are alkali metals which have general…

Q: Write the valence electron configuration for SF6.

A: Sulphur is in Group 16 and thus has 6 outer electrons. The Electronic configuration of sulphur is…

Q: Which of the following combination of elements is the most reactive? Cs and I Na and Br Cs and Br…

A: Greater is the difference in electronegativity between two atoms in a molecule, higher will be the…

Q: Describe the basic structure of the periodic table

A: I have shown the basic structure of the modern periodic table in step 2.

Q: Draw a nitrogen atom, NN, and an oxygen atom, OO.

A: Nitrogen atom has atomic number seven. Oxygen atom has atomic number eight.

Q: The Lewis structure for a boron atom has electron pair(s) (represented by :) and unpaired electrons…

A: What is ratio of electron pair :lone pair in BF3 ?

Q: Write the condensed (noble-gas) electron configuration of Cr³⁺.

A: The condensed electronic configuration of Cr3+ has to be written.

Q: Write the condensed (noble-gas) electron configuration of Mg

A: General Electronic configuration of Mg2+ - 1S2, 2S2,2p6,3S2 But question asked Condensed (Noble-gas)…

Q: 4What causes the changes in ionic radius from left to right across  period 2 of the periodic table.

A: The answer is given below

Q: What is the valency of noble gases?

A: Valency: Valency is the combining capacity of an element.

Q: Answer the following questions related to the chemical bonding in substances containing Cl. (a)…

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Q: Draw a schematic diagram of group 4 and 5 cations.

A: Group 4 cations include Barium, Strontium and Calcium.

Q: What is the electron configuration of Ne2?

A: Electronic configuration is defined as arrangement of electrons in shell, subshell and orbitals.

Q: the central atom in the nitrate anion, NO3-is surrounded by

A: The objective of the question is to identify what is the central atom in the nitrate anion and what…

Q: Explain the following trends in latttice energy: a.  NaCl >RbBr b.  BaO > KF c.  SrO > SrCl2

A: Ionic compound is formed by the transfer of electrons from a cation to anion. Lattice energy is…

Q: The halogen in the second period. CI Br O.F O At

A:

Q: What is noble gas electron configuration of Zn2+ ?

A: The arrangement of electrons around an atomic nucleus in varying energy levels is termed  as…

Q: AL(NO3), + KaSOs Alb (Sos),+ KNOJ 3

A: Al(NO3)3 + K2SO3 → Al2(SO3)3 + KNO3

Q: Very small semiconductor crystals, composed of approximately1000 to 10,000 atoms, are called quantum…

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

Q: Consider an ionic compound, MXMX, composed of generic metal MM and generic, gaseous halogen XX. The…

A: