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

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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: 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: 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: 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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