Atom/Ion: Al3+ # Core Electrons # Valence Electrons Effective Nuclear Charge (Zeff)

Q: How many valence electrons are there in the tetramethylammonium ion, (CH3)4N+? a. 32 b. 18 c. 8 d.…

A: Volume Shell of N

Q: Which of the following ions is isoelectronic to Ne? O-2 OF-2 K+ O Al+2 None of these

A: Isoelectronic species(moreover, 'Iso' means same and 'electronic' means electrons) are those species…

Q: Which element forms an ion that is smaller than its atom? O lead O fluorine O sulfur oxygen

A: Atoms are made up of subatomic particles like electrons, protons and neutrons. The electrons are…

Q: An atomic cation with a charge of +2 has the following electron configuration: 1s 25 2p°3s 3p°3d² 6.…

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Q: Which ions have the same number of electrons as an atom of krypton Se^2- As^3- Ca^2+ K+ Which…

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Q: Use the periodic table to determine the electron configurations for the following atoms. As an…

A: Total number of electrons present in a neutral atom are equals to the atomic number of atom.  Group…

Q: What is the number of ee distant pairs in an atom with 32 electrons? O a. 1493 O b. 496 O c. 512 O…

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Q: 3. Give the charge and draw the Lewis dot symbol 3.1. of the anion formed when a sulfur atom accepts…

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Q: Which ionic compound below is composed of ions that are isoelectronic with each other? MgS Rbl Feo…

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Q: Which of the following atoms has seven valence electrons?    In          Cl         Ca           Te…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 8.2 Use the second member of each group from Group 1A to Group 7A to show that the number of valence…

A: Periodic table represents the systematic arrangement of elements in which the properties of these…

Q: Which will form an ion with a +2 charge? A. S B. Br C. Ba D. Cs

A: We have to predict the element which will form ion with +2 charge.

Q: Which of these ions is isoelectronic to the oxide anion O2-? A) K* B) Mg²- C) CI- D) S2- E) Pb2*

A: Given :-  Anion = O2-   To identify :-  Its isoelectronic species out of K+,Mg2+,Cl-,S2- and Pb2+

Q: How many valence electrons do the atoms of the following elements contain? 4 valence electrons 1. S…

A: the electrons present in the outermost shell or valence shell of the atom is known as valence…

Q: If a Chlorine (CI) atom gained an electron, what would be the overall charge? O+1 O +2

A: Chlorine gains an electron, leaving it with 17 protons and 18 electrons. Since it has 1 more…

Q: From the list of atoms and ions given, identify the species that have the same electron…

A: First, writing the electronic configuration of all elements. Then the electronic configuration of…

Q: Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4…

A: Ans Cs is a group 1 metal. It contains 55 electrons when neutral. A Cs atom loses one electron to…

Q: Using one or more energy level diagrams, explain the multiple ion charges of As3+ and As5+.

A: A question based on energy level diagram, which is to be accomplished.

Q: 1- A) 12 B) 22 YERAS NARKOS C) 23 D) 24

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Q: Which of the following atoms and ions is (are) isoelectronic with 15² + ₂ (A) As³+ B) Ar (C) C₁³+ D…

A: Isoelectronic species refer to those which consist of the same number or count of valence electrons.…

Q: Species Number of electrons Number of electrons Number of core in valence shell electrons Ca Cs+ p3.…

A: A neutral atom consists of same number of protons and electrons. When the atom loses electron, it…

Q: Which family in the periodic table has the following general electron configuration, [NG]ns2(n-1)d5,…

A: Given Electronic Configuration  is  [NG] ns2 (n-1)d5

Q: Which family in the periodic table has the following general electron configuration, [NG] ns²…

A: The arrangement of the elements in the order of their increasing atomic number or atomic masses such…

Q: 1. Calculate the effective nuclear charge of the 59th electron in Platinum 2. Give the noble gas…

A: The outermost electron's charge is referred to as the effective nuclear charge.The number of…

Q: Which of the following pairs of ions represent isoelectronic species? A) Mg2* and O² B) K+ and Li+…

A: Isoelectronic species has same number of electrons.

Q: Write the electron configuration for a phosphorus anion with a charge of -3.

A: Write electronic configuration of phosphorus anion with -3 charge?

Q: Define the term main group element. Then, determine the charge that an atom of each of the following…

A: We have been asked to define the term main group element and to assign charges to the atom when…

Q: An atomic cation with a charge of +1 has the following electron configuration:…

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Q: What species fi ts each description? a. a period 3 element that forms an ion with a −1 charge b. an…

A: a. a period 3 element that forms an ion with a −1 charge = Cl  It forms Cl- ion.   b. an ion from…

Q: What is the predicted ionic charge for a s ion? a) 6+b)6- c)2+d)2-

A: The gain of one or more electrons by a neutral atom leaves the neutral atom negatively charged…

Q: Identify the number of core and valence electrons for each atom. Ne: core electrons Ne: valence…

A: Given,                  Ne, Be and F     Required,                          Number of core electrons…

Q: Which one of the following elements is most likely to have successive ionization energies in kJmol"…

A: Given   Successive ionization energy  (kJ/mole) 1st 786 2nd 1580 3rd 3230 4th 4360…

Q: What is the charge of the ion most commonly formed by S?a) 2+                          b) +…

A: Given: Common charge of sulfur

Q: An atomic anion with a charge of-2 has the following electron configuration: [Ne] 3s 3 p° What is…

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Q: stable charge

A: An atom acquire charge in order to attain noble gas stable electronic configuration.

Q: Solve this

A: In the periodic table, each element has a different electronic configuration and represented by the…

Q: True or False 1. -The electron configuration of an atom could give the total number of electrons in…

A: The electronic configuration is the arrangement of electrons in different energy levels in an atom…

Q: 38. Given: Al, 0, CI, N. Which has the greatest tendency to donate electrons and form positive ion?…

A: Multiple question given here,

Q: Which one of the following is the charge of an ion with protons 22 and 20 electrons? а. -2 O b. -1 О…

A: Atom is the smallest particles by which matter is formed. Atom consist mainly proton, neutron and…

Q: Arrange the following ions in order of increasing size.        Li+        Cl-        I-        Br-…

A: Increasing order of size of ions,    Li+  <  Na+  <  Cl-  <  Br-  <  I-

Q: Which of the following atoms is correctly listed with its number of valence electrons? Li has 3 B…

A: Valence electrons are electrons present in outermost shell or energy level of an atom. The number of…

Q: How many valence electrons do the following elements have? A.) Sr B.) Cl C.) Si D.) Se E.) H

A: Interpretation -  To tell about how many valence electrons do the following elements have -  A.) Sr…

Q: 7-Identify the following atoms or ions f a) atom: 1s 2s 2p 3s 3p 4-

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Q: Rank the following isoelectronic species in order of decreasing size: Argon atom (Ar), Calcium ion…

A: Anions are formed by the gain of electrons and cations are formed by the loss of electrons. The…

Q: 4. Rank the following ions in order of increasing first ionization energy: O, Mg, F, Na. Mg2t <Nat<…

A: In general, the nuclear charges increase means the ionization energy also increase.All the ions have…

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

A: (a) Na(+) Total number of electrons = 10 Negative ion with same number of electrons = O(2-) (b) K(+)…

Q: An atomic anion with a charge of –1 has the following electron configuration: | 10 [Kr] 5s 4d"5 p°…

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Q: If Arsenic is to be isoelectronic with Se2 (selenide ion), it should gain 3 electrons lose 3…

A: Isoelectronic is nothing but an atoms or ions having same number of electrons

Q: When neutral atoms lose electrons they become O anions O radioactive O negatively charged O…

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