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Concept explainers
Interpretation: It should be identified for the species in the list which does not possess isoelectronic behavior among the given molecule.
Concept Introduction:
Isoelectronic:
The term” Isoelectronic ‘means equal electric, or more specially, equal charge .
Isoelectronic species are mostly having the same or equal number of electrons.
This model explores that although isoelectronic species have the same number of electrons but they differed in their position and physical and chemical property.
Examples of Isoelectronic species:
A series of isoelectronic ions can be made from any number of series of the elements.
For example, elements coming before Nobel gas form isoelectronic ions by gaining electrons until they have the same number of electrons as the Nobel gas.
The electron configuration of
The series of isoelectronic species are
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Chapter 8 Solutions
Chemistry & Chemical Reactivity
- 2-59 You are presented with a Lewis dot structure of element X as X.. To which two groups in the Periodic Table might this element belong?arrow_forward(c) Theoretically, define the following elements in the formulae belowPth = ρghq x ŋarrow_forward(b) A new element, "X", is discovered and found to have 2 electrons in its outer level. Is X a metal or non-metal? Predict the formula its ion would have in any ionic compounds it forms.arrow_forward
- Answer true or false. (a) For Group 1A and Group 2A elements, the name of the ion each form is simply the name of the element followed by the word ion; for example, Mg21 is named magnesium ion. (b) H2 is named hydride ion. (c) The nucleus of H1 consists of one proton and one neutron. (d) Many transition and inner transition elements form more than one positively charged ion. (e) In naming metal cations with two different charges, the suffix -ous refers to the ion with a charge of 11 and -ic refers to the ion with a charge of 12. (f) Fe31 may be named either iron (III) ion or ferric ion. (g) The anion derived from a bromine atom is named bromine ion. (h) The anion derived from an oxygen atom is named oxide ion. (i) HCO3 2 is named hydrogen carbonate ion. (j) The prefix bi- in the name “bicarbonate” ion indicates that this ion has a charge of 22. (k) The hydrogen phosphate ion has a charge of 11, and the dihydrogen phosphate ion has a charge of 12. (l) The phosphate ion is PO3 42. (m)…arrow_forward39. How many grams are in 2.3 x 104 formula units of KNO,? (A) 38.6 grams (B) 102.3 grams (C) 140 gramsS (D) 386 grams 40. Which statement describes the general trends in electronegativity and first ionization energy as the elements in Period 3 are considered in order from Na to Cl? (A) Electronegativity increases, and first ionization energy decreases (B) Electronegativity decreases, and first ionization energy decreases (C) Electronegativity and first ionization energy both increase (D) Electronegativity and first ionization energy both decrease 2020 Illuminate Education TM, Inc. 9.arrow_forwardHow many inner, outer, and valence electrons are present in an atom of each of the following elements? (a) Br (b) Cs (c) Cr (d) Sr (e) Farrow_forward
- Explain what is wrong with the name or formula at the end of each statement, and correct it: (a) Ba(C2H3O2)2 is called barium diacetate. (b) Sodium sulfide has the formula (Na)2SO3. (c) Iron(II) sulfate has the formula Fe2(SO4)3. (d) Cesium carbonate has the formula Cs2(CO3).arrow_forwardWrite formulas for ionic compounds. (a) What is the formula of the ionic compound expected to form between the elements sodium and fluorine? (b) What is the formula of the compound formed between the ions Co²+ and SO₂²? (c) What ions make up the ionic compound Zn(CN)₂? Cation formula Anion formulaarrow_forwardAn element X reacts with oxygen to form XO2 and with chlorineto form XCl4. XO2 is a white solid that melts at high temperatures(above 1000 °C). Under usual conditions, XCl4 is acolorless liquid with a boiling point of 58 °C. (a) XCl4 reactswith water to form XO2 and another product. What is thelikely identity of the other product? (b) Do you think thatelement X is a metal, nonmetal, or metalloid?arrow_forward
- An element X reacts with oxygen to form XO2 and with chlorineto form XCl4. XO2 is a white solid that melts at high temperatures(above 1000 °C). Under usual conditions, XCl4 is acolorless liquid with a boiling point of 58 °C. (a) XCl4 reactswith water to form XO2 and another product. What is thelikely identity of the other product? (b) Do you think thatelement X is a metal, nonmetal, or metalloid? (c) By using asourcebook such as the CRC Handbook of Chemistry and Physics,try to determine the identity of element X.arrow_forward39. How many grams are in 2.3 x 1024 formula units of KNO3? (A) 38.6 grams (B) 102.3 grams (C) 140 grams (D) 386 grams 40. Which statement describes the general trends in electronegativity and first ionization energy as the elements in Period 3 are considered in order from Na to Cl? (A) Electronegativity increases, and first ionization energy decreases (B) Electronegativity decreases, and first ionization energy decreases (C) Electronegativity and first ionization energy both increase (D) Electronegativity and first ionization energy both decreasearrow_forward(a) What is the formula of the ionic compound expected to form between the elements aluminum and sulfur? (b) What is the formula of the compound formed between the ions SO32- and K+? (c) What ions make up the ionic compound FePO4 ? Cation formula Anion formulaarrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
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