A  particular atom, in its neutral form, has 90 electrons; how many electrons will a corresponding negative ion have?

Q: A. An element with the valence electron configuration 3s² would form a monatomic ion with a charge…

A: A) As we know the element with valence electronic configuration 3s2 is Magnesium (Mg) which is form…

Q: An unknown element is a nonmetal and has a valence electron configuration of ns2np4a. How many…

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

Q: Explain the sudden jump in ionization energy for the elements in period 3 and why that jump occurs…

A: The elements in third period are: Na, Mg, Al, Si, P, S, Cl, and Ar.

Q: Which 2+ ion has two 3d electrons? Which has eight 3d electrons?

A: To find: The 2+ ion which has two 3d electrons and eight 3d electrons

Q: Atoms of which group in the periodic table have a valence shell electron configuration of  ns1?

A: Interpretation- Group of atoms in periodic table with ns1 configuration. Concept introduction-…

Q: Which atom has the largest first ionization energy? - Ga - As - N - B

A: Ionization energy is the amount of energy required to discharge an electron from an isolated,…

Q: Arrange the following atoms according to decreasing effective nuclear charge experienced by their…

A: The elements given are S, Mg, Al and Si belongs to 3rd period of the periodic table.

Q: What element forms an ion with an electronic configuration of [Xe] and a −2 charge?

A:

Q: An unknown element is a nonmetal and has a valence electron configuration of ns2np4a. How many…

A: Since you are asked for multiple sub-parts, we are entitled to solve first three only.

Q: Some ions do not have a corresponding neutral atom that hasthe same electron configuration. For each…

A:

Q: Write the electronic configurations of the six cations that form from sulfur by the loss of one to…

A: Electronic configuration of sulfur is 1s2 2s2 2p6 3s2 3p4 The atomic number of sulfur is 16 so it…

Q: why would certain Adams more strongly hold onto their electrons? Describe the exceptions and why…

A: There are attractive forces present between the nucleus and the electrons present in the shell.…

Q: Which experience a greater effective nuclear charge: the valence electrons in beryllium or the…

A: Beryllium and nitrogen are present in the second period of the periodic table.

Q: Write the electron configurations of the six cations that form from sulfur by the loss of one to six…

A: Electronic configuration of sulfur is 1s2 2s2 2p6 3s2 3p4 The atomic number of sulfur is 16 so it…

Q: How many valence electrons does Oxygen, Sulfur, Selenium, Tellurium and Polonium have?

A: The term valence electrons refer to the electrons which are present in the outermost shell (also…

Q: Calculate the effective nuclear charge on a valence electron in a bromine atom.

A: The effective nuclear charge Z* = Z - S  Z = number of protons in the nucleus  S = average amount of…

Q: There are several statements about valence electrons below. Which one is true?  They do not…

A: Definition of valence electron: A valence electron is an outer shell electron that is associated…

Q: Halogens are a family of elements that have very low melting points and have a tendency to gain…

A: Halogens belongs to the 17th  group. That are fluorine, chlorine why bromine dissolved iodine…

Q: The electron configuration of a cation M3+ is [Ar] 3d3. What is the electron configuration of the…

A: Please find the attachment

Q: Write shortly about the followings: 1- Semimetals or metalloids 2-The average valence electron…

A: Concept introduction: Periodic table is divided into four blocks that are s,p,d and f blocks. s, d…

Q: A. A main group element with the valence electron configuration 3s1 is in periodic group? It forms a…

A: According to octet rule, a element or ion is stable enough when it has its octet completed. i.e. 8…

Q: Write the condensed electron configuration (SPDF notations) for the following atoms and ions: Br…

A:

Q: Which of the following choices has the ions in order of decreasing size? O Br, Rb*, Se2- O Rb*,…

A: Cations are formed from the loss of electron & anions from the gain of electrons.

Q: 1. The electron configuration for a neutral element is 1s 2s?2p'. If the electron configuration for…

A: The distribution of electrons in an element's atomic orbitals is defined by its electron…

Q: Write an equation for the removal of an electron from agaseous atom of sodium.

A: Removing an electron from any gaseous atom requires a certain amount of energy and that energy is…

Q: What is the relationship between the ionization energy of an anion with a -1 charge, such as F−, and…

A: Electron affinity:It is the energy released when an electron adds to the neutral gaseous atom (F-).…

Q: Rank the following ions in order of increasing first ionization energy: O2–, Mg2+, F–, Na+

A: Ionization energy: The amount of energy required for the removal of an outermost electron (closely…

Q: Write general outer electron configurations (nsx npy ) for groups 6A and 7A in the periodic table.…

A: The periodic table is the arrangement of elements in periods and groups.

Q: the electron configuration for zirconium (II) cation, Zr2+ (Z = 40)?

A:

Q: A. An element with the valence electron configuration 5s' would form a monatomic ion with a charge…

A:

Q: maximum number of electrons that can have l = 3 and ms = -1/2

A: Maximum number of electrons that can have l = 3 and ms = -1/2 is

Q: What is the valence electron configuration for the helium atom? (2) What is the valence electron…

A: Hello. Since the question contains multiple sub-parts, the first three sub-parts shall only be…

Q: 9) Explain why the number of valence electrons for a main-group element is equal to its Roman…

A: Since for neutral atoms the number of valence electrons is equal to the atom's main group number.

Q: What is the element has five 4p valence electrons? what ion will it form?

A: Elements which have a same number of valance electron in the periodic table are classified in the…

Q: Write the condensed (noble-gas) electron configuration of Mn.

A:

Q: Electron arrangements with 8 electrons in the outermost shell tend to be more stable than other…

A: Atomic number of Calcium is 20. The symbol for Calcium atom is Ca. Electron configuration of calcium…

Q: Elements in groups IA and VIIA of the periodic table possess, respectively, how many valence…

A: The general electron configurations of group IA and group VIIA elements are ns1 and ns2np5…

Q: What do all of the elements in a given horizontal row of the periodic table have in common?

A: The horizontal rows of the periodic table is known as the period. While the vertical columns are…

Q: Cr forms two monatomic ions, Cr²+ and Cr³+. From which sublevels do you expect electrons are lost in…

A:

Q: The first four ionization energies (IE, through IE4) of a Period 2 element have the following…

A: The ionization energy of elements along a period increases from left to right because of stability…

Q: Which of the following elements have a tendency to lose electrons? O Na, Ca, Al O C N, O O F, CI, Br

A: Metal can easily lose electrons to acquire stable Nobel gas configuration.

Q: How many valence electrons does an atom of any element in group 6A have ?

A: Given information,      Element in group 6A

Q: Write the full electron configuration for a Ca+ion.

A:

Q: Write the full electron configuration (no noble gas short cuts) for Sr2+

A: Given Sr2+ whose full electronic configuration is to be written.

Q: An element with the valence electeon configuration 4s1 would form a monatomic ion with a charge of…

A: Valence electrons are electrons that are present in outermost shell of an atom. Elements in a each…

Q: Which of the following elements is easiest to ionize (has the least ioniza energy)? F- Ne Na+ Mg2+…

A:

Q: Write out the full electron configuration for a magnesium ion with a charge of 1 +

A: Answer :-   The electron configuration of Magnesium ion with a charge +1 is 1s2,2s2,2p6,3s1

Q: The outermost valence electron in atom A experiences an effective nuclear charge of 2+ and is on…

A: The effective nuclear charge and average distance from the nucleus is +2 and 225 pm of atom A and…