QUESTION 1 an The electron configuration of element after it acquires a charge of -1 is 1s2s²2p63s²3p6 . The element is а. О Ob. Ar Oc. K )d. Cl

Q: Quiz #2 1 of 1 v Complete Part I The name of the element in Period 2 and Group 3A (13) is > View…

A: Elements in periodic table are arrayed in the ascending order of their atomic numbers. Elements with…

Q: 7. Which of the following is an ionic compound? A. BF; В. СО: C. H:0 D. NiCl; 8. How many electrons…

A: Ionic bonding is a type of chemical bond that involves the electrostatic attraction between…

Q: why dose higher atomic weight elements in the firsts two groups in the periodic table  r(alkaline…

A: First and second group elements are alkali and alkaline earth metals (Alkali metals- Li,…

Q: 4. The correct electron-dot notation for C (atomic number 6) is .. 1) ·C ; 2) ·C..; 3) C., 4) -ċ. ..

A: The atomic number of carbon is 6. Its states that the carbon atom contains six protons and six…

Q: electronic configuration

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Q: and 2 (At Hom ise 2.107 25 of 27 I Review | Constants | Periodic Table ef uses a bag of sand to…

A: Step → Since,       mass = density×volume

Q: 13. How is the periodic table organized?

A: The periodic table consists of 7 periods and 18 groups. Periods are the horizontal rows, and groups…

Q: Charlie Wede udent x S-Atoms& Mosa Mack (NB slides 56,7 o Tools Add-ons Help Last edit was scnds so…

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Q: nas the same electron configuration as Ar sa scandium ion with three positive charges s considered…

A: The question is based on the concept of atomic structure. we have to answer the following questions…

Q: 73. Determine the only possible +2 ion for which the following two conditions are both satisfied:…

A: Condition-1: (the net ionic charge is 1/10th of nuclear charge)Nuclear charge = protons charge +…

Q: For each element, give the following information: [1] total number of electrons; [2] group number;…

A: a) The total number of electrons in oxygen is 8. Oxygen belongs to group 16. The number of valence…

Q: Which element is the most reactive? A:Cs B:BA C: C D: S

A: The given elements are Cs, Ba, C, and S. From these elements Cs and Ba are the metal element and C…

Q: 4. What is the ganaral trand for atomic radius as you go down the noble gas farnily?

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

Q: 69. What does the graph to the right best represent? a) atomic radii of Period 2 b) ionization…

A: Note: They all are very short questions so I am solving all questions. Given: Graph Rare earth…

Q: Which of the given elements has the most nonmetallic character?

A: In the periodic table, the left side of the periodic table contains metals whereas the right side…

Q: Briefly explain (i) Thompson Experiment OR (ii) Rutherford Experiment emphasizing the discovery(ies)…

A: E. Rutherford discovered protons which are positively charged sub-atomic particles. J. J. Thompson…

Q: For each of the following atomic numbers, use the periodic table to write the formula (including the…

A: This question belong to periodic table and chemical bonding.

Q: 5. What element has 25 electrons when it forms a cation with a 2+ charge?

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Q: In Rutherford's experiment, most of the positively charged alpha particles escaped from the sheet…

A: Thompson model of atom consisted of positive charge cloud and negative charge inside it. In this…

Q: 37. Isotopes of the same element have the same number of protons but differ in their A) Atomic…

A: Since, Isotopes are those whose number of protons are same but it's mass number (atomic weight) is…

Q: 9. The chemical formula of Bismuthane is 10. The Element that belongs to VIA and which is used in…

A: In the periodic table:Each element is represented by its symbol, such as H for hydrogen, He for…

Q: 8. (Calorimetry - Determination of specific heat) A 5.1-gram piece of gold jewelry is removed from…

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Q: 3. Which of the following options places the models of the atom in the correct chronological order?…

A: The electron configuration of an atom or ion can be deduced using the three rules below. Students…

Q: Choose all of the following that apply to oşmium, Os. a. Metalloid b. Alkali metal Oc. Transition…

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Q: What is the symbol of this atom? Enter both the mass and the atomic number.

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

Q: Statement A: When a metal loses electron, it becomes an anion. Statement B: When a nonmetal gains…

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Q: 1. Count the atoms for each element in the for (C:N.).N NaHCO,

A: Given molecule : first molecule :(C2N4)2N 1 mole mole of any chemical substance contains Avogadro's…

Q: 5. Which one of the following statements about atomic structure is false? A An atom is mostly empty…

A: Atom is made up of three fundamental particles that is electron proton and neutrons .

Q: Question 29 What ionic charge would you think most likely for the element Se? (You may want to refer…

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Q: draw and label the following A.) A neutral atomic with an atomic number of 6 B.) A cation with a…

A: For neutral atom  Atomic number = number of electrons = number of protons  For anion , Atomic number…

Q: Antimony belongs to Group SA. What is its correct a. b. Sb-

A: Antimony belongs to Group 5A. The correct electron-dot structure is                       Option d.…

Q: 5A 6A 7A 1A H. Li 2A ЗА 4A 8A He Ne Ar Kr Be Mg Са Na P. Al Ga Si CI Br According to this…

A: Modern periodic table was prepared by Henry Mosley which is based on modern periodic law according…

Q: An ion from a given element has 24 protons and 21 electrons. What is the charge on the ion? What is…

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Q: 7.) Identify the following elements: a. period 5 alkali metal. 5 halogen. b. period 4 halogen. C.…

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Q: Based on what you have just seen above, explain why the Alkali Metals are the MOST reactive metals…

A: The electrons are in the outermost shell of any element are known as valance electrons.

Q: 9. What does the atomic number on the periodic table indicate about an atom of that element? A the…

A: Option A will be correct.

Q: 55. In the periodic table, how many the following? a. Group 2A b. the oxygen family c. the nickel…

A: To find the number of elements present in the following groups.Concepts:The period table has 18…

Q: The radioactive nuclide 60Co as a half-life of 5.27 years. Calculate the mass (in g) of "Co that…

A: Formula: N=Noe-λt

Q: 16. What charge will a cation formed from strontium have? Select one: a. none of these b. -3 С. -1…

A: Answer is explained below.  We know that Strontium (Sr) is a Group-2 atom.  The electronic…

Q: Help help me with question 2 3 4

A: 2. Isotopes of an element has a same atomic number and different mass number. Option-b is the…

Q: Predict the charge of the ion most likely to form for each. a. F b. Sr c. Group VA d. The Noble…

A: Interpretation: We have to predict the charges on the species.

Q: Which element labeled A-E in the periodic table below will have an onic charge of -1? |A B IC D…

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Q: The element is part of teeth and bones and is also used in production of blood substitutes in…

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Q: Which of the following is an ion with a single negative charge? 1) H₂C-Ö: ỦY CỔNỘI iii) E :OWN iv)…

A: All of these have a single negative charge