Which element has the following configuration: [Xe]6s²4f¹12 Enter the chemical symbol for the element.

Q: Which of these elements is most likely to form ions with a 2+charge?(a) Li (b) Ca (c) O (d) P (e) Cl

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Q: Locate each group on the periodic table and list the chargeof the ions it tends to form.(a) Group…

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Q: A main group element with the valence electron configuration 2s22p3 is in periodic group__________…

A: Given electronic configuration is 2s22p3

Q: Describe the basic organizational feature of the periodic table of the element.

A: The Dimitri Mendeleev gave the modern law of periodic table, which states that the properties of the…

Q: Which of these is the smallest? Arsenic Selenium Bromine Krypton Iodine

A: Answer:- This question is answered by using the simple concept of variation of atomic size across…

Q: Some properties of element Y are listed. It reacts with hydrochloric acid to make hydrogen gas. It…

A: 1. Mg +2HCl  → MgCl2  + H2 2. Mg  + H2O → MgO + H2 Magnesium burns in steam to produce white…

Q: III Finding atomic mass from isotope mass and natural abundance isotope A robot spacecraft returned…

A: Answer:To solve this question we need to find the mass number of Ru and for that we need its average…

Q: Name one metalloid in period 4 and one non-metal in period 5:

A: The metalloid in period 4 is ,        Germanium  (Ge)       Arsenic (As)

Q: A 4570 g sample of an element contains 5.009x10^25 atoms. Identify the element.  - Fe - V - Cr -…

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Q: How is it that 147N has 5 electrons?

A: An isotope is represented by the system given as,AZX In this notation, X is the symbol of an…

Q: What is the electron configuration of: (a) Mg+ (b) S2– (c) B3+ (d) Co2+ (e) Er3+

A: The positve charge i.e. cation of the atom are formed by the loss of outermost electrons and…

Q: ) i)  options:  dehydrating agent                       steel production…

A: Answer to question 2 as asked, is being given:

Q: Select the symbol of the element that fits each of the following descriptions: (a) the alkaline…

A: Symbol of the elements that fits given descriptions are,

Q: To what group number does each element belong?(a) germanium(b) nitrogen(c) sulfur(d) carbon(e) boron

A: An atom is the basic and fundamental unit of matter. An atom consists of electrons and the nucleus…

Q: Is astatine a nonmetal metal or metalloid

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Q: B Na,S O,

A: 6) To write net ionic equation, follow the below mentioned steps: 1)Write balanced chemical…

Q: Symbol of the element 4p^1

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Q: (a) Are the elements calcium, barium, and radium in the same group or same period in the periodic…

A: A horizontal row in the periodic table is known as periods and a vertical column in the periodic…

Q: Does any element with Z ≤ 92 match the description? An element in period 6 and group 6A

A: The question is asking if there is an element with atomic number (Z) less than or equal to 92, that…

Q: You have made up a new non-metal element, Lolium, and produced a gaseous compound from it with a…

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Q: Which of the following elements would you expect to have the highest ionization energy? Pb Ge Cs…

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Q: Which element would be expected to have chemical and physical properties closets to those nitrogen(N…

A: sulfur, because it's in the same groupGroups are columns of a periodic table. Both oxygen and sulfur…

Q: a ) Eva l u a te t h e expre s s i o n s 2 x 1, 2 x (1 + 3),2 x(1 + 3 + 5), and 2 x (1 + 3 + 5 + 7).…

A: In the expression, the total number of valence electron is calculated in which 2 is the number of…

Q: How many valence electrons does an element in each group contain: (a) 2A; (b) 4A; (c) 7A?

A: (a)  Group 2A : Valence electrons = 2 (b)  Group 4A : Valence electrons = 4 (c)  Group 7A : Valence…

Q: Differentiate between metal and non-metal on the basis of their chemical properties.

A: Metals are lustrous and opaque elements which are good conductor of heat as well as electricity. And…

Q: Не N Ne P. Na

A: Given,

Q: Arrange the following elements according to the increase in their atomic sizes; (0, S, Se) S> Se >0…

A: Atomic radius: The atomic radius of an element decreases as we move from left to right in a period…

Q: Does any element with Z ≤ 92 match the description? An transition element in period 6.

A: The question is asking if there is any transition element in period 6 of the periodic table with an…

Q: Determine the systematic name for CaSO4

A: Determine the systematic name for CaSO4

Q: Between which two elements is the difference in metallic character the greatest? (a) Na and O (b) K…

A: Cheqk electronegativity of each elements, from top to down metallic character increase, but from…

Q: 28. (a) In Figure P7.7, which sphere could represent a Na atom, Nation, and K atom? Provide an…

A: In P 7.7 = (a) represent Na , (c) represent Na+ and (b) represent K. As we decrease the no of…

Q: Q1 a) Write the electronic configuration of an ion formed by an element of group1A and period 6. (2…

A: [a.] An element of group 1A and period 6  = Cs ( Caesium) Ion formed by Cs = Cs+ (Caesium ion)  So,…

Q: Classify each of the following fourth-row elements as an alkali metal, an alkaline earth metal, a…

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Q: A 4.582 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

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Q: Does any element with Z ≤ 92 match the description? A main group element  on period 4.

A: The question is asking if there is any element with an atomic number (Z) less than or equal to 92,…

Q: What are the family names for groups 3A, 4A, 5A, and 6A on the periodic table.

A: The family names for groups 3A, 4A, 5A, and 6A on the periodic table are given in step two.

Q: 4. Darium (Da) is the name given to the hypothetical element with an atomic number of 120. It should…

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Q: what is the electron configuration of Cu3+

A: The objective of the question is to determine the electron configuration of a Cu3+ ion.

Q: What is the differences between an Oxygen atom (16 amu, atomic number = 8) and a Calcium atom (46…

A: Oxygen atom = 16amu Calcium atom = 40amu  Metal- it have tendency to lose electron. Non metal - it…

Q: Which of the following elements would you expect to be least metallic? Ge O Zn Se

A: Metallic property: Metals are electropositive and they easily lose electrons to form cations. The…

Q: What would be the electron configuration of a sulfur ion S-2

A: Answer: the electronic configuration of S2-  = 1s2 2s2 2p6 3s2 3p6 or [Ne] 3s2 3p6

Q: Which group in the periodic table contains elements with the valence electron configuration of…

A: Electronic configuration of an atom is defined as the arrangement of electrons of the atoms in its…

Q: Which of the following elements would you expect to have chemical properties most similar to those…

A: on the basis of the periodic table, we can say that the elements that belong to the same group have…