The pair of ions having same electronic configuration is: K* , Na* Na*, Mg*2 O Ca+2, Mg+2 O K* , Mg*2

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: Nombre de protons Nombre de neutrons Carbon: C 6 6 Hydrogen: H 1 Oxygen: O 8 1- Distinguish between…

A: Anything which occupies space & have mass is matter. Example: Elements, compound.

Q: Consider the following atoms: I. 325 II. 65Cu II. 32CI IV. 63Cu V. 59CO Which of the atom(s) above…

A: 1) protons = 16, neutrons = 16  2) protons = 29, neutrons = 36 3) protons = 17, neutrons = 15 4)…

Q: Which of these species make an isoelectronic pair: CI, O²-, F, Ca²+, Fe³+? Ca²+ and Fe³+ Cl and Ca²+…

A:

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

A:

Q: Which of the following is the best explanation for a covalent bond? a. electrons simultaneously…

A: Covalent bond is formed by sharing of electron and the shared pair of electrons simultaneously…

Q: What is the charge of the common ion formed by each of these atoms? Sr, F, Br, Na, S, Mg, Ba, I, O,…

A: The charge of the ion formed by the elements is decided by the number of valence electrons present…

Q: Give the maximum number of electrons that can have n = 3 and ml = 0.

A: The number of electrons in the orbital is filled according to the quantum numbers. The four quantum…

Q: Which pair of elements have the same number of valence electrons? A. O, Si B. He, Be C. Ne, Mg…

A: We have to find from the given options which pair of elements have the same number of valence…

Q: 13. Which ion is this atom most likely to form? 1 111 1 1s 2s 2p 3s а. Na* b. Na c. Ne d. Mg"

A: Given electron configuration is,  1s2 2s2 2p6 3s1

Q: Element X reacts with chlorine to form an ionic compound that has the formula XCl2. To which group…

A: Formula   = XCl2 Group Number of X = ?

Q: When atoms of the following elements form ions, what charge or charges would the ions have? a.…

A: Charge is determined based on octet rule

Q: What do we mean by the term electronic structure? Select all that apply. The arrangement of the…

A: In an atoms nucleus is present at the centre and it contains neutrons and protons and these species…

Q: Consider an ionic compound, MX, composed of generic metal M and generic, gaseous halogen X. • The…

A:

Q: Place the following ions in order from smallest to largest ionic radii: K+, Na+, Mg2+, and Al3+.

A:

Q: An atomic cation with a charge of +2 has the following electron configuration: [He] 2s 2 p° What is…

A: The electron configuration of +2 charged cation is as follows: He 2s2 2p6

Q: An atomic cation with a charge of +1 has the following electron configuration: 2 [Kr] Ss°4«®5p? What…

A: In an atom, the atomic number forms the identity of the element. Atomic number is the number of…

Q: Indicate whether or not each of the following pairs of atoms/ions are isoelectronic. a)   K+ and Ar…

A: in isoelectronic atoms or ions ,Number of electrons are equal in both atoms or ions

Q: An atomic cation with a charge of +1 has the following electron configuration: 1s°23°2p°3s*3p° 6.…

A: Atomic number of atom = total protons present in an atom  In a neutral atom ; number of protons are…

Q: The chemical formula of table salt, NaCl, tells us what about the atomic bonding of this molecule? a…

A: In the molecular formula, the subscript written next to the atom represents the number of that atom…

Q: Greetings and Thank you  for your help....I Appreciate  you 2. Give the formula of a negative ion…

A: Ions are formed when removing from electrons from or receiving electrons to the atom. Donation of…

Q: Give systematic names to the following binary compounds. a. N20 b. P2O3 c. SbF3 d. CCL

A: Naming of the compound is done by looking at the cation and anion

Q: Which of the following pairs of atoms and ions are isoelectronic?    Li+, Rn    S2−, Cl−…

A: Isoelectrons are atoms, molecules or ions that have same number of electrons in their shell or…

Q: 1. Br Br 2. 3. 4. ÇI 5.

A:

Q: 3. Consider an imaginary element, a transition metal called jessium, J. a. Name the compound: JCI4…

A:

Q: What is the chemical formula of the ionic compound produced through the interaction of each of the…

A: 1(a) Li and S  The reaction of the above two elements is given below : 2Li  +  S  →  Li2S The ionic…

Q: Which of the following sets of cations is in order of increasing ionic radii. A Ca2+ < Be2+ < Ba2+ <…

A:

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: 13. Below, the ionic radii of several ions are shown relative to the radius of neutral atoms of the…

A: Given :ionic radii of several ions.  To find : Reason for the order of ionic size. Solution : As we…

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: Na +, K +, Ca 2 +, and Mg 2 + are the four major cations in the body. For each cation, give the…

A: Na has an atomic number of 11. Thus, the number of electrons and protons in Na = 11. Na+ means it…

Q: What is the formula for the compound formed from Mg2+ and Br ions? Please write out the formula in a…

A: An ionic compound is formed by cation and anion.

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

A:

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

A:

Q: Predict the chemical formulas of the compounds formed bythe following pairs of ions: (a) Cr3+ and…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Which of the following species has the same number of electrons as Cl⁻? A) S²⁻ B) Br⁻ C) F⁻…

A: Number of electrons in a cation= atomic number – magnitude of charge Number of electrons in a anion=…

Q: Solve this

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

Q: Which ion has the same electron structure as a krypton atom? O A. Rb* O B. Mg2+ O C.- O D. Cr

A: Ans is A

Q: Is it possible to pick out a unique cluster of atoms that can be thoughtof as a sodium chloride…

A: Ionic compound - Those compounds which are made up of ions, positively charged ions called cations…

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: What noble gas structure is formed when an atom of each of these metals loses all its valence…

A: a) Given element Potassium. The electronic configuration of Potassium is given below, K : 1s2…

Q: Effective nuclear charge, Zeff, is defined as A) the number of protons minus the number of valence…

A: The protons and the neutrons of the atom are situated in the nucleus of the atom. The electrons ate…

Q: An atomic anion with a charge of -2 has the following electron configuration: | 10 6 [Kr] 5s²4d¹05 p…

A: What is the answer for this specific problem?

Q: A monatomic ion with a 1- charge and a monatomic ion with a 1+ charge both have an electron…

A: Ionic bond : These bonds are formed by the transfer of electrons from one element to another…

Q: a NaO positive ions negative ions b Feo positive ions negative ions C PbS, positive ions negative…

A: Solving only first three subparts in accordance with guidelines. We will calculate number of…

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

A:

Q: Give the names of the following covalent compounds: a) B203 b) SiO2 c) CCI4 d) P205

A: Name of following covalent compound

Q: 3. Write the complete electron configuration for the following ions and state if it is an anion or…

A: (a) Magnesium is an alkaline earth metal lose two electron from its valence shell to for a cation…

Q: For the following pairs of ions, use the principle of electrical neutrality to predict the formula…

A: According to the law of electrical neutrality, in an ionic solution, an amount of negative charge…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.