Which noble gas is the most abundant in the universe? In Earth’s atmosphere?

Q: Define the term Hydrogen Halides?

A: The term hydrogen halides has to be explained.

Q: Name the three possible oxides which form with alkali metals and alkaline earth metals. Name one…

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Q: (a) What is the range of oxidation states shown by the elements of Group 5A(15) as you move down…

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Q: Explain the following in terms of structure and Magnesium has a higher melting temperature than…

A: The electronic configuration of Sodium ( 11Na ) - 1s2, 2s2,2p6,3s1 Magnesium (12Mg) -1s2,…

Q: What is the valence electron configuration for the Group 3A elements? How does metallic character…

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Q: Explain the relationship between the number ofelectrons in the halogen and the boiling point.

A: Halogens are electron rich. On moving top to bottom in the group, the number of electrons of an…

Q: Which alkali metal has maximum ionic mobility in aqueous solution?

A: Alkali metals exits as hydrated ions in aqueous solution.As the size of the metal ions increases,…

Q: Define the term Halogens?

A: The term Halogens has to be defined below.

Q: The elements sodium, aluminum, and chlorine are in the same period. (a) Which has the greatest…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: What is the oxidation number of S in the compound Na,S,O5?

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Q: Why is red phosphorus denser and less chemically reactive than whitephosphorus?

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Q: Describe how sodium dihydrogen phosphate can be used as a pH buffering agent.<

A: A buffer solution is one that can resists change in its pH on the addition of an acid or a base.  A…

Q: Which halogen has the highest ionization energy? Is this what you would predict based on what you…

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Q: Describe the lanthanide contraction using basic atomic structure theory  (b) What are its effects on…

A: Lanthanide  contraction  occurs due to poor shielding  effect of 4f orbitals.

Q: Give a few examples of non-stoichiometric metal hydrides

A: HYDRIDES may be defined as:- Hydrogen under certain conditions combines with almost all elements,…

Q: Which of the following has an oxidation state of-1 for nitrogen? O hydroxylamine O hydrazine O…

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Q: Write the chemical formula for tellurium hexaiodide

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Q: Write equations for the formation of these compounds -) from the elements: a. Strontium Hydride b.…

A: While writing the formation equation from the respective elements, we write the elements in their…

Q: What are the major health concerns associated with exposure to nitrogen dioxide?

A: Nitrogen dioxide should be handled carefully. It is a dark brown to yellowish liquid. It has a…

Q: Which halogen has the greatest ionization energy? Is that what you would predict based on what you…

A: The minimum amount of energy that is required to remove the electron from an outer valence shell of…

Q: Describe the hybridization and the bonding of a silicon atom in elemental silicon.

A: Silicon is a group 14 element and it has the four valence electron. Hence it will form 4 covalent σ…

Q: Which of the following is NOT a possible oxidation state of Mn? O +8 O +3 O +7 O +5 O +2

A: Here in this question, i am doing second part related to oxidation state.  Mn have the maximum…

Q: What is the oxidation state of tungsten in WO3?

A: In this question we have to tell the oxidation number of tungsten in WO3.

Q: What oxidation states does Xe show in its compounds?

A: The oxidation number is the actual charge present on the atom in the compounds. Example: The…

Q: Although the earth was formed from the same interstellar material as the sun, there is little…

A: The atmosphere of earth consists of mostly nitrogen and oxygen along with some amount of noble…

Q: Give reason why the alkali metals tarnish in dry air

A: Alkali metal are highly reactive metals . they reacts with oxygen  to form oxide and form a layer of…

Q: Which alkali metal ion has maximum ionic mobility in aqueous solution?

A: The capability of ions to move upon the effect of electric field through a medium is termed as ionic…

Q: Elemental C has one of the highest atomization energies on the periodic table at 717 kJ/mol. Explain…

A: Possible reasons for High ionisation energy are larger effective nuclear charge, smaller size and…

Q: Give any two examples of amphoteric oxides.

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Q: What is the formula for the simplest oxide of carbon if it contains carbon in a +2 oxidation state

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Q: Explain why the interhalogen molecule BrCl3  exists but ClBr3 does not.

A: According to periodic properties, the size of the elements increases down the group.  The atomic…

Q: (a) Which poisonous gas is evolved when white phosphorus is heated with Cone. NaOH solution? Write…

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Q: What is a hydride and how are they classified? Mention the characteristics of each one

A: We have to classify hydride

Q: In the alkali metal group, the Cesium is less reactive than lithium.

A: To find: Whether the given statement is true or false.

Q: Write the chemical formula for each of the following, and indicate the oxidation state of the…

A: (A) calcium hypobromite- Ca(BrO)2, halogen- Br, oxidation state of Br is "+1" (B) bromic acid-…

Q: What is the valence electron configuration for Group 4A elements? Group 4A contains two of the most…

A: In the periodic table, 4A group elements are those that have 4 electrons in the valence shell.…

Q: Write the chemical formula for each of the following compounds,and indicate the oxidation state of…

A: To determine chemical formula of compounds and indicate oxidation state of halogen: a). chlorate…

Q: Explain why phosphine, PH3, is less polar than ammonia?

A: The less polarity of PH3 than NH3 is discussed below,

Q: Ionic hydrides are primarily compounds of hydrogen and nonmetals, in which the bonds are evidently…

A: Ionic hydrides are primarily compounds of hydrogen and nonmetals,   The above statement is not fully…

Q: How is Le Châtelier’s principle involved in the productionof elemental potassium?

A: Potassium is prepared by chemical reduction of potassium ions using liquid sodium. But sodium is…

Q: The halogens form oxoacids with different amounts of oxygen. Explain why HClO4  is a stronger acid…

A: The structures of HClO4 and HClO2 can be shown below,

Q: Discuss similarities and differences in structure, availability, and properties of the two groups…

A: Similarities of Alkali metals and Alkali earth metals: The alkali and Alkaline earth metals belong…