What is the main characteristic that determines whether or not an element is a main-group element?

Q: What are amphoteric oxides? Give examples?

A: Metal oxide that behaves as acid as well as base are called amphoteric oxide. Such metallic oxides…

Q: Arrange the following oxides in order of increasing acidity:CO2, CaO, Al2O3, SO3, SiO2, P2O5.

A: To arrange the above oxides in the increasing order of acidity, a thumbrule to remember is: The more…

Q: Write the formula of the acid formed when each of these acidic oxides reacts with water. 1. Cl,0, 2.…

A:

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: Is each oxide basic, acidic, or amphoteric in water: (a) MgO; (b) N₂O₅; (c) CaO; (d) CO₂; (e) TeO₂?

A: Since we answer only upto 3 sub-parts so we'll answer first three sub-parts. Please resubmit the…

Q: Write the balanced equation of the reaction between Al and oxygen in the presence of heat.   4.…

A: In the given question we have to write the balance equation of the following reaction.  3. Aluminium…

Q: (c) (i) Give the formula of the stable oxides of the elements of Period 3 in the table below. Symbol…

A: c(i)  Element Na Mg Al Si P S Cl Ar Fomula of oxide  Na2O MgO Al2O3 SiO2 P2O5 SO2 Cl2O -

Q: How are Metallic hydrides formed?

A: ANSWERE IS DISCUSSED BELOW ;

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: Is each oxide basic, acidic, or amphoteric in water: (a) SeO₂; (b) N₂O₃; (c) K₂O; (d) BeO; (e) BaO?

A:

Q: Which of these two oxides, SO3 and P4O10 , when reacts with water will produce stronger acid?

A: P4O10 and SO3 are acidic oxides and when they combine with water forms acids.

Q: period 4 element with the smallest atomic radius

A:

Q: How do atomic properties account for the low densities of the Group 1A(1) elements?

A: Alkali metals are the s-block elements belonging to the group IA(1) in the periodic table. The…

Q: Which of the following oxides is acidic?  a. Na2O b. CaO c. Al2O3 d. N2O3 Basic?  a. Ga2O3 b.…

A: We are given oxides of different elements, we have to predict the acidity and basicity of the given…

Q: What are amphoteric oxides? Give two examples of amphoteric oxides.

A: Oxides of metals which have both acidic as well as basic properties are called amphoteric oxides.…

Q: Which of the following elements have the largest atomic radius? ON O P O S

A: We are having four element N,O,P,S . We have to decide which element is having the largest atomic…

Q: How do atomic properties account for the low densities ofthe Group 1A(1) elements?

A: Alkali metals are the s-block elements belonging to the group IA(1) in the periodic table. The…

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: How are ionic hydrides formed?

A: Ionic hydrides are compounds that form between hydrogen and highly active metals, mainly with the…

Q: How do the transition metals in Period 4 affect the pattern ofionization energies in Group 3A(13)?…

A: Concept introduction: Ionization energy: The required energy to remove an outermost electron from a…

Q: What will you use (OA or RA) to make possible the following reactions ? OA= Oxidising Agent ,…

A: Given Reaction a)   NO3 - → NO2-b)   FeO → Fe2O3

Q: Explain the differences in chemical and physical properties of metals and nonmetals, including the…

A: Metals are placed on the left-hand side of the periodic table, and non-metals on the right-hand side…

Q: Identify the following hydrides as ionic, metallic, or molecular:(a) BaH2, (b) H2Te, (c) TiH1.7.

A: The hydrides are mainly generated by combining H-molecule with any metal. In hydrides, H-atom…

Q: Describe the chemical and physical properties of Potassium ?

A: Potassium (symbol K) is an element of the group 1 (alkali metals) of the periodic table. The atomic…

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

A:

Q: Does the metallic characteristic of a main-group element increase or decrease as we move down a…

A: The metallic characteristics of a main-group element increases as we move down a family because the…

Q: Describe the types of halogens, their modes of action, and theirclinical and commercial…

A: In periodic table, all chemical elements are placed. They are placed according to atomic number.…

Q: Does the reaction of a main-group metal oxide in water pro-duce an acidic solution or a basic…

A: Main group elements are the elements of s and p block. The element which belongs to second period…

Q: Describe the physical properties of metals?

A: The physical properties of metals has to be given,

Q: Element X reacts with element Y to give a product containing X 3+ ions and Y2- ions.

A: Ionic compounds are always electrical neutral, so total charge should be zero. Equation: 2 X3+   + 3…

Q: Select one of the alkali metals and write a balanced chemical equation for it's reaction with…

A: Alkali metals are group 1 metals  Hence let's take sodium metal i.e Na

Q: Name two metals which occur in nature as oxides.

A: Metals are the elements which lose electrons to acquire a stable electronic configuration. When loss…

Q: Many compounds of Group 3A(13) elements have chemical behavior that reflects an electron…

A: Group 3A(13) elements are Boron group family which include elements: Boron Aluminum Gallium Indium…

Q: Write a balanced equation for the reaction of elemental strontium with each of the following:(a)…

A: Interpretation - To write a balanced equation for the reaction of elemental strontium with each of…

Q: What is the step to step formula of finding the simpliest oxide?    How is the oxide formula of…

A: The simplest formula of any compound is known as empirical formula which can be defined as the…

Q: Write balanced chemical equations for the following reactions. boron oxide → boron + oxygen

A:

Q: Would the reaction of cesium, Cs, with oxygen be more or less vigorous than K?

A: We are given two elements K and Cs

Q: 3. Which of the following is NOT found in group 13? A boron (B) B gallium (Ga) © indium (In) D…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the trend in first ionization energies as one proceedsdown the group 7A elements? Explain…

A: The trend in first ionization energies in group 7A elements has to be given.

Q: Why do alkaline earth metals have low ionization enthalpy?

A: Solution;- Alkaline earth metals have the lowest ionization enthalpy

Q: Write the formula of the acid formed when each of these acidic oxides reacts with water.

A: The reaction of acidic oxides with water yields acid and when the acidic oxides reacts with base…

Q: Write a general equation for the reaction of a halogen with each substance.a. a metal b. hydrogen c.…

A: 17th family members are termed as halogens. Halogens are reactive species, they react easily with…