Which of the following elements does not follow the octet rule? (a) sodium (b) helium  (c) krypton (d) carbon (e) sulfur

Q: The more reactive an atom, the higher its potentialenergy. Which atom has higher potential…

A: Potential energy is the link between structure and reactivity. The greater a structure's chemical…

Q: Which one of the following has the largest lattice energy?

A: Lattice energy depends on: Covalent character: More the covalent character, higher is the lattice…

Q: Predict the charge expected for the most stable ion of(a) aluminum and (b) fluorine

A: Aluminum belongs to the 13th group of the periodic table. It is a p-block element. The ground state…

Q: a) The element Xenon (Xe) is rarely forming compounds. By knowing its position in the periodic…

A: Answer  Xe is the noble gas element which is present in…

Q: What is the total number of valence electrons for IF4-?

A: a/c to periodic table  iodine, fluorine (halogen family) have 7 valence electrons ( ns2 np5)  note =…

Q: Are the following Ionic Compounds, Covalent Compounds or Acids? Write formulas as appropriate for…

A: we have to write the formula of the given compounds and classify them

Q: The following Lewis diagram represents the valence electron configuration of a main-group element.…

A: Valence electrons are outermost shell electrons and valence electrons are the same for all elements…

Q: Calcium (Ca) has a greater electronegativity than Barium (Ba). Explain why. In your explanation…

A:

Q: What is required first in order to ascertain the Lewis electron dot diagram of an atom?

A: Lewis electron dot diagram is a representation of valence electrons of an atom. It is formed to…

Q: The following Lewis diagram represents the valence electron configuration of a main-group element.…

A: The main group elements in the periodic table also called representative elements are the elements…

Q: Neon has eight valence electrons in its outer shell. This means it does not easily react with other…

A: Neon →  10Ne       atomic Number of Neon=10           It contain Electrons=10Electronic…

Q: What type of elements in the periodic table cannot break the octet rule by having an expanded octet?…

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

Q: Contrast the behavior of metals and ionic compoundswhen each is struck by a hammer

A: The metals possess the phenomenon of losing electrons to gain stability. The ionic compounds are the…

Q: What is the charge for the nitrogen,O; based on the following Lewis structure?

A: In this question, we will see the charged on the nitrogen atom and the charged on the atom calculate…

Q: What is a coordinate covalent bond?

A: Coordinate bond is also called dative bond.

Q: Why can't second-row elements have more than eight electrons in their valence shell? That is, why…

A: We are to discuss why octet rule is always followed by second row(group II) elements without any…

Q: The following Lewis diagram represents the valence electron configuration of a main-group element.

A: The Lewis diagram of the element is given as

Q: What is a metallic bond, as opposed to an ordinary covalent bond?

A: Metallic Bond:

Q: Which of the diatomic halogens, bromine, chlorine, fluorine, or iodine has the longest bond length.…

A: The answer of the above question is given in step 2

Q: State the process of Calculating formal charge ?

A: Assigned charge of an atom in a molecule is called formal charge.

Q: The compound chloral hydrate, known in detective storiesas knockout drops, is composed of 14.52% C,…

A: Note : There is misprinting in the data given as the sum of % is not coming 100. the error is that…

Q: Consider the following information. • The enthalpy of formation of SrO is AH; = -592.0 kJ/mol. • The…

A: Lattice energy is defined as the energy released when 1 mole of a solid compound is formed from its…

Q: Recall how to write Lewis electron dot symbols of (main group) elements

A: Here we have to write the Lewis elctron dot symbols of the main group elements.  From the Lewis dot…

Q: Recognising exceptions to the octet rule.

A:

Q: In the correct Lewis electron dot structure for the CN- ion there would be a ________ bond between…

A: Three (3)

Q: Does a metal and non metal make a Ionic Bond, Covalent Bond, or both?

A: A metal is a substance that when freshly prepared, polished, or fractured, shows a lustrous…

Q: Of the elements Li, K, N, P, and Ne, which (a) is the most electronegative?

A: The ability of an atom to attract the shared pair of electrons is known as electronegativity. On…

Q: disilicon pentaselenide,  is it ionic or covalent?

A: Ionic bond is formed when there is large difference in electronegativity value of two atoms.…

Q: Which of the following Lewis dot structures best represents carbon dioxide?

A: The structure A represent the best possible Lewis structure of CO2.

Q: Why are elements at the extreme left and extreme right the most reactive?

A: Given: The elements at the extreme left and extreme right are the most reactive elements.

Q: Which of the following compounds energy? BeO, LiBr, KBr, CaO, KF BeO O LiBr KBr O Cao O KF

A: Before answering we have to know something about lattice energy. Lattice energy is directly…

Q: Nitrous oxide, N2O, has the following structure. Which bond in N2O is a coordinate covalent bond?…

A: The structure of nitrous oxide(N2O) is given below : N  ≡  N  -  O.... : The electron pair of weak…

Q: Consider the following information. • The enthalpy of formation of SrO is A H; = -592.0 kJ/mol. •…

A: Given values are: ∆H°f (SrO) = -592.O kJ/mol∆Hsub (Sr) = 164.4 kJ/molIE1 (Sr) = 549 kJ/molIE2 (Sr) =…

Q: Which of the following compounds is molecular (covalent)?

A: Given : formula of different compounds.

Q: The following Lewis diagram represents the valence electron configuration of a main-group element.…

A: Valence electrons  The number of electrons present in the outermost shell of the atom are called as…

Q: The following Lewis diagram represents the valence electron configuration of a main-group element.…

A: The valence electron around the atom is designated using the lewis structure where each dot…

Q: What do Lewis structures and VSEPR/electron models tell u sand what is the difference between them?

A: Lewis structures show how valence electrons are arranged among atoms in a molecule. Lewis structures…

Q: The following Lewis diagram represents the valence electron configuration of a main-group element.…

A: The element can be identify on the basis of valence electrons and period number.

Q: Does the periodic trend of electronegativity match the periodic trend of ionization energy?

A:

Q: Explain why phosphorus can have an expanded octet but nitrogen can't.

A: An atom that has more than an octet (can accommodate more than 8 electrons) in its valence shell, is…

Q: Which one of the following bonds has the most ionic character?

A: Ionic character is directly proportional to the difference in electronegativity between the two…

Q: Draw a Lewis electron-dot symbol for (a) As; (b) Se; (c) Ga.

A: Lewis structure represents the systematic arrangement of atoms around the central atom. Only valence…

Q: A student is attempting to draw several resonance structures for a species. of the following is…

A: We have to tell which option is correct from given choices of options by telling which movement of…

Q: Which properties decrease as you go left to right in a period and increases as you go down a column…

A:

Q: Neon has eight valence electrons in its outer shell. This means it does not easily react with other…

A: Neon is a noble gas and it has a highly stable s2p6 electronic configuration in the outer space i.e.…

Q: How many covalent bonds are there in one molecule of carbon dioxide, CO,?

A: