Use the diagram to answer the question. Which element, represented by X, would have the valence electron configuration shown in the diagram? A sodium (Na) В phosphorus (P) lithium (Li)

Q: (After transferring 2 electrons, atom forms a X 2+ ion containing 10 electrons.) Identify element X…

A: Atomic number is equivalent to number of electrons or number of protons in neutral element, that is…

Q: Give the formula of a negative ion that would have the same number of electrons as: a)Sodium…

A:

Q: Which of the following elements has 7 valence electrons? Select one: a. C b. Br c. N d. S e. Be

A: Given elements, a. C b. Br c. N d. S e. Be

Q: Which of the following elements has 7 valence electrons? Select one: а. Br b. C С. Ве d. S e. N

A: The atom of each element has electrons that are arranged in specific energy shells. The valance…

Q: Give the periodic group number and number of valence electrons for each of the following atoms. a. S…

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: Write the full electron configuration for Cl. full electron configuration: What is the atomic symbol…

A: The electronic configuration can be defined as the way of distribution of electrons present in an…

Q: Element X reacts with chlorine to form an ionic compound that has the formula XCl2. To which group…

A: Formula   = XCl2 Group Number of X = ?

Q: The number of valence electrons. The number of electrons in K-Shell.

A: Valance electrons are defined as the electrons present in the outmost shell of the atom. According…

Q: 1. How does the electron theory explain (a) why a rubber rod becomes negatively charged when rubbed…

A: When a rubber rod is rubbed with a fur the electron get transferred from the fur to the rod thus…

Q: Give the electron-dot symbol for each element: (a) bromine; (b) lithium; (c) aluminum; (d) sulfur;…

A: Electron-dot symbol or Lewis structure is a way of representing the valence electrons of the atom.…

Q: In each of the following pairs, which has the larger radius? (a) Li atom or Li ion (b) Mg atom or Mg…

A: From the following, which has the larger radius has to be given.

Q: Atoms bond to other atoms to obtain a/an electron configuration. A. alkali metal B. halogen C. noble…

A: Noble gas possess a completely filled valence electron i.e. ns2np2. Atoms should attain stable…

Q: When two atoms are joined together covalently, the van der Waals radius of the atoms in the covalent…

A: Concept Introduction:  The Van der Waals radius and the covalent radius are deal with two different…

Q: Which of the elements listed below would have atoms with the largest atomic radius? * O Indium O…

A: First we will discuss about the concept atomic radius. The atomic radius is the distance from the…

Q: Have you noticed the nutrient label in your favorite snack? What are the elements present in it?…

A: Element present in the snack are given on the back of the packet of snacks.

Q: Which would be the correct chemical formula for Li(1+) and S

A: Applying concept of formula formation by valency of element.

Q: Which has seven valence electrons? A. sodiumB. chromiumC. boronD. argonE. chlorine

A: The given options are,

Q: The chemical formula of table salt, NaCl, tells us what about the atomic bonding of this molecule? a…

A: In the molecular formula, the subscript written next to the atom represents the number of that atom…

Q: Identify the FALSE statement about ionic radii. A. Sr2+ is larger than Br B. Na* is smaller than Na…

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Q: Use the periodic table to order the following atoms from smallest (1) to largest (4) Al Ba P Ca

A: Al is smallest and Ba is largest

Q: a) What is the chemical name of this element? b) Write the electron configuration of X'. c) Write…

A: The diagram of element “X”, that shows the electron present in different shells, is shown below. In…

Q: Aluminum has three valence electrons, and oxygen has six valence electrons. What is the formula for…

A: Number of valence electron in Aluminium = 3  Number of valence electron in oxygen = 6  OCTET RULE…

Q: Which element, represented by X, would have the valence electron configuration shown in the diagram?…

A: Valence electron configuration is defined as the arrangement of electrons in the outermost shell of…

Q: Using only the periodic table arrange the following elements in order of increasing atomic radius:…

A: When we go down the group in modern periodic table, then element of atomic radius is increasing down…

Q: Write out the electron energy diagram, full electron configuration, and condensed electron…

A: Hello. Since the question contains more than three sub-parts, the first three subparts shall be only…

Q: ATOMS Electronic Atomic Configuration- only with the highest atomic Name of PRODUCTS Element/s…

A: Given products: Evaporated milk. NFA rice

Q: 1. Which would most likely form a metallic bond with gold? a. chlorine b. manganese c. oxygen d.…

A: Metallic bonds are formed in between  metal atom which is one of the strongest  bond in lattice  of…

Q: Hydrogen bromide is a compound of the two elements hydrogen and bromine. It has a melting point of…

A: Since you have asked questions with multiple subparts, we will answer only first three subparts for…

Q: 3. Complete the information in the following table: Number of Valence Element Rb Energy level in…

A: Electronic configuration is arrangement of electrons in shells, subshells and orbitals.

Q: Among the following ions, which has the SMALLEST radius? Select one: O a. Mg2+ O b. Be2+ Oc. K* O d.…

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Q: Discuss the formation of Mg+2 ion using its orbital notation and electron dot diagram.

A: The orbital notation for any given element can be given by writing its electronic configuration…

Q: 1. When an atom gives off each one or more electrons to another atoms the kind of substance will…

A: 1)   Ans:  C   (ionic compound)                 when atom looses one electron convert into cation…

Q: 1. Which of the following elements would you expect to behave most like magnesium? A) Sodium B)…

A: Since you have posted multiple questions, we will solve only first question for you. If you want…

Q: Based on Coulomb’s Law, which salt has the highest lattice energy? A) sodium fluoride B) calcium…

A: Since the formula of salts are  A) Sodium Fluoride => NaF                      => Na+ and F-…

Q: Which one of these ions has the largest radius? Select one: 2- a. S b. Na C. K d. CE 2- e. O

A:

Q: Describe atomic structure; name and describe the parts of atoms, and their arrangement/location and…

A: The atom is the smallest unit of matter that may be not divided into smallest particle without…

Q: How many electrons does each of the following elements have in its outermost electron shell? Draw…

A: Applying lewis dot structure of elements.

Q: U is a made up element and contains 5 valence electrons E is a made up element and contains 6…

A: Valence electron of U = 5 Valence electrons of E = 6

Q: Construct a table to show the electron dot structure of the first 20 elements and the elements…

A: The electron dot structures represents the valence electrons using dots around the atom.

Q: For salt (NaCl) and sugar (sucrose, C12H11O11) added to water, draw pictures of what you expect the…

A: Given information: NaCl and sucrose molecules.

Q: A neutral magnesium atom has 12 electrons. How many electrons does Mg²⁺ have?

A: During oxidation there is loss of electrons. The charge developed depends on the number of electrons…

Q: Which substance can be described as cations bonded together by mobile electrons? Select one: O a.…

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Q: Determine the number of valence electrons for each of the atoms. Enter each answer as a numeral. For…

A: In chemistry the outer shell electrons of an atom is generally known as the valence electrons.  For…

Q: According to Coulomb's law, which ionic compound A-D has the smallest electrostatic potential energy…

A: Given: Order of size of anions = F<Cl<Br<I To find: Ionic compound that has smallest…

Q: The overall sign on an atom that shows if it is positive or negative or neutral

A: ANSWER IS DISCUSSED BELOW

Q: 3. Write the symbol for: (a) A hydrogen atom that gained one electron. (b) A magnesium atom that…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.