Does sodium sulphide and calcium permanganate and iron oxide and nitride oxide and carbon fluoride and nitrogen oxide contain a multivalent metal?

Q: Why does sodium fluoride have a melting point of 993°C but nitrogen has a melting point of -210°C?

A: Please find your solution below : Melting point of any substance is defined as the temperature at…

Q: What correlation, if any, exists for the Period 2 elements between group number and the number of…

A: The number of electrons in an element is equal to its atomic number. In order to become stable an…

Q: Mgo is a basic oxide Fa O TbO

A: Oxide are binary compound of oxygen with other elements. On the basis of chemical behaviour it is of…

Q: Which one of these structures has the longest ionic bond length between the ions in the structu…

A: Longer the bond length weaker the bond Shorter the bond length stronger the bond .The melting point…

Q: Why is Iron (II) oxide not similar to copper (I)oxide

A: Iron (II) oxide contains iron (II) ion and oxide ion. copper (I) oxide contains copper (I) ion and…

Q: Why is there objection in the use of Hydrogen Sulfide in group cations?

A:

Q: Why Lanthanoides and actinoides are placed at the bottom of the periodic table?

A: The reason why lanthanoids and actinoids are found at the bottom of the periodic table has to be…

Q: Cesium tends to be the most reactive of the stable alkali metal. What atomic property of radioactive…

A: Cs is considered to be a radioactive metal. It is larger in size and its reactivity is very high. If…

Q: chromium

A:

Q: Describe the structures of atoms, ions, molecules, free radicals, and compounds.

A: Atoms are the basic unit of matter. It consists of 3 main subatomic particles  Electros-They are…

Q: None of the noble gases make compounds.  True  False

A: * nobel gas have stable electronic  configuration.  * due to stable electronic configuration,  they…

Q: Explain the chemical reaction of atmospher

A: The concept used in this question is taken from the General chemistry. Our atmosphere mostly…

Q: Nitrogen ions tend to have a charge of 3-; explain the reason for this pattern/trend.

A: Here we have to find why nitrogen ions tend to have a charge of 3-.

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

A:

Q: The two discrete molecules, oxygen and sulphur exist in nature as O2 and Se even though they are…

A: Both oxygen and sulphur present in same Chalcogen group. Oxygen is present in second period of…

Q: What is the electron sea model for bonding in metals?

A: Ionic bonding involves transfer of e- and covalent bonding involves sharing of e- between atoms.

Q: Hydrogen react with other elements to form binary hydrogen compound, or also known as hydrides.…

A: Hydrogen is the element having atomic number 1.  It has a special place in the periodic table.

Q: Give an example of an ioninc compound? Describe why it is classified as an ioninc

A: Ionic compounds are formed by transfer of electrons between the metal and non-metal.

Q: Indicate the physical state for each of the following elements at 25 °C and normal pressure.…

A: (a) barium (Ba) : Physical state = Solid  Metal element.  (b) boron (B)  Physical state = Solid…

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: What is a tetrahedral hole?

A:

Q: what holds a unit together in a crystal of an ionic compound?

A: ●Ionic compounds held together by ionic bonds. ●The strong intermolecular force of attraction…

Q: Which may form +1 or +3 ions, depending on the conditions? A) gold  B) postassium C) silicon

A: Transition metal placed between s-block and p-block elements and they are termed as d block…

Q: The following equation correctly represents the formation of an oxide anion: O(g) 0² (g) + 2e → O…

A: In an atom three fundamental particles are present. Positively charged particle protons and neutral…

Q: Draw the electron dot formula and the structural formula for a molecule of SiO2

A:

Q: what are the changes in chemical properties in nanomaterials?

A: The question is asking about the changes in chemical properties that occur when materials are…

Q: How do beryllium hydroxide and barium hydroxide each compare to the Group II metal hydroxides,…

A: We Know that from in the periodic table group I and groups II elements are belongs to the s block…

Q: The metal which is protected by a layer of its own oxide is ans. Copper Gold Aluminum Iron

A: Given Choices  Copper  Gold Aluminum Iron As we know iron in presence of air (oxygen and moisture)…

Q: How can I predict the bonding activity between phosphorous and chlorine. Why do they would bond that…

A: Bonds are of two types:-  Ionic Bonds  and Covalent Bonds

Q: For each main-group element in the table below, predict the compound it forms with hydrogen. In…

A: Hydrogen will form compounds with metals and non-metals. For metals it has a oxidation state of (–1)…

Q: What is the chemical formula of ammonium hydrogenphosphate? (NH4)3PO4 O (NH4)2HPO4 NH4HPO4 NH4H2PO4

A: A set of chemical symbol present showing the element present in the compound and their relative…

Q: What are the chemical equations for the following:  CoCl4+ H2O  CuSO4 +NH3 CuSO4 + KSCN CuSO4…

A: CoCl4 + H2O The chemical reaction is, CoCl4 + 6H2O  --->  Co(H2O)6 + 4Cl

Q: What is the most likely type of bind present between atoms of germanium and arsenic

A: Silicon and germanium are pure semiconductors. The addition of impurity to the pure semiconductor to…

Q: Arrange the nonmetal elements of period 3 in order of decreasing melting point.

A: The melting point of a substance is the temperature, at which the solid phase converted to the…

Q: Look up tellurium 1Z = 522 in the periodic table and predict how many covalent bonds it is likely to…

A: Covalent compounds are formed by sharing of electrons in between two or more atoms. In the covalent…

Q: The most reactive metal group is called the

A: Reactivity of metal depends upon value of ionization energy and reduction potential.  Less is the…

Q: don't  understand why Fe3+ + O2- becomes Fe2O3. I'm confused why the charges switch

A: Writing formula of compounds :- The formula of compounds is written by following electrical…

Q: Zinc iodide will have the same appearance and properties as which of the following?   zinc sulfide…

A: Zinc sulfide is coreect answer  It is white hexagonal crystals which is a form of solid. Zinc…

Q: Which of the following has the largest covalent radius ?   Mg Ca Sr Ba

A: Covalent radius of an element is defined as the half of the internuclear distance between two atom…

Q: Complete the tables above. What is the trend in the atomic radius across the period, also explain…

A:

Q: Why is Group I elements known as the most electropositive element?

A: Electropositive nature of the elements is determined by their ability to lose the valence electrons.…

Group 13 Elements

In the periodic table, group 13 elements exist in the first p-block. There are six elements present in group 13, which include boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and element 113 (ununtrium, (Uut)). Group 13 elements are also designated as the boron family.