(a) What are valence electrons? (b) How many valence electrons does a nitrogen possess? (c) An atom has the electron configuration 1s22s22p63s23p2. How many valence electrons does the atom have?

Q: To which group of the periodic table does the general valence electron configuration ns2np4…

A: ns2np4 means 2 electrons in outer s orbital and 4 in outer p orbital

Q: Rank the size of the following atoms and ions –C, C-. F-, Na+, Rb+

A: Cationic radius of element is always less then parent atoms and anionic radius is always greater…

Q: In the isoelectronic series Ca2 + , Cs+, Y3 + , which ion islargest?

A: Among Ca2+, Cs+, Y3+ the largest ion will be:

Q: How many electrons can the third shell (i.e., n=3) hold for an atom?

A: Number of electron that a shell can accommodate = 2n2, where, n = number of the shell.

Q: How much energy is required to excite an electron from a n3 ⟶⟶ n5 within the hydrogen atom?

A: The answer to the following question is -

Q: Atoms of which group in the periodic table have a valence shell electron configuration of ns2np3?

A: The valence shell configuration ns2 np3 means that the atoms of that group contain 5 electrons in…

Q: (a) Use orbital diagrams to illustrate what happens when anoxygen atom gains two electrons. (b) Why…

A: The effect of gain of two electrons by oxygen atom is to be illustrated using orbital diagram. Why…

Q: If the configuration of an atom ends in 5d®, its period and group is O 6, VA O 5, VIB O 6, VIIIB O…

A: The configuration given is 5d8. Period : Since n = 5 But 6s electrons fill before 5d. So, 6s…

Q: What is the electron configuration of Ni ? O [Ar] 3d®4s2 [Ar] 4s 3d10 [Ar]3d° O [Ar] 3d7 O [Ar]…

A: Electronic configuration is the distribution of electrons of an atom or molecule in atomic or…

Q: Which is the correct electron configuration for the ion Ta³*: O…

A: According to Aufbau principle electrons first fill to lower energy orbital before filling higher…

Q: Doesn't N have 5 valence electrons or did do that incorrectly?

A:

Q: Which of the following atoms and ions is largest: S2 - , S, O2 - ?

A: An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The atomic…

Q: electron configuration of P³⁻?

A: Atomic number of P = 15  Total electrons in P = 15  Electrons are filled in the subshells in…

Q: Calculate the valence electron of the following molecules   PO43-   ICl2-   C3H8O

A: Calculate the valence electron of the following molecules--

Q: What is the ground-state electron configuration of the sulfide ion S2−S2−? Express your answer in…

A: We are given a Sulfide ion i.e, S2-

Q: Write the condensed (noble-gas) electron configuration of Cr²⁺, Co2+,Mn4+,and Cr3+

A:

Q: Give the ground-state electron configurations of the fol- lowing elements: (a) C (b) Se (c) Fe

A:

Q: Give the electron configurations of these ions, and indicate which ones are isoelectronic. a) Ca2+…

A:

Q: A neutral atom has the following electron configuration: [Ne] 3s°3p* What is the chemical symbol for…

A: The electronic configuration is the distribution of electrons of an atom or molecule (or other…

Q: How many valence-shell electrons are there in NO?

A: Valence shell electrons are those that are present in the outermost shell.

Q: How many valence electrons in Groups 1,2,3,5,6,7,8A?

A: Valence electrons mean electrons present in the outermost shell/ Valence shell of an atom.

Q: Which neutral atom is isoelectronic with each of the following ions: Ga³+, Ca²+, P3+, K+, Pb²+?…

A: Which neutral atom is isoelectronic with each of the following ions ::

Q: Which species has this ground-state electron arrangement? 1s2 2s² 2p 3s² 3p6 3d6 O Cr²+ O Cr4+ O…

A:

Q: Notice that the center atom and the two corner atoms along a diagonal all touch. What is the length…

A: Given:  I) A cubic unit cell with edge length = a II) Radius of the atom = r

Q: What is the ground state electron configuration of a Co²+ ion? O 1s22s22p 3s³3p 4s²3d5 O1s²2s²2p…

A: The atomic number of Cobalt is 27.

Q: A neutral atom has the following electron configuration: 1s 2s 2p°3s²3p' How many electrons does the…

A: A neutral atom is the atom carrying no charge. It will become an ion after losing and gaining…

Q: In the ground-state electron configuration of Fe3+, how many unpaired electrons are present?

A: The atomic number of iron is 26, which means it contains 26 electrons.  These electrons are arranged…

Q: The atom having the ground-state valence-shell configuration of 6s6p would be a: A halogen in…

A: Second option. A halogen in Period 6 Fourth option. A noble gas in Period 6

Q: Draw a nitrogen atom, NN, and an oxygen atom, OO.

A: Nitrogen atom has atomic number seven. Oxygen atom has atomic number eight.

Q: Without consulting any tables, arrange the following sub- stances in order and explain your choice…

A: Since you have posted multiple questions, we will solve only first question for you. To get the…

Q: Jsing the orbital sequencing diagram provided, for an element with 19 protons and 19 electrons (- 3p…

A: The orbital diagramme and electronic arrangment are given below

Q: For a group 15/5A atom, how many electrons must it gain to be stable?

A: For the elements present in group 15/5A the number of outer most (valance) electrons are 5 Again…

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

A: The long form of periodic table is the arrangement of all elements in the increasing order of their…

Q: full electron configuration for the following atoms: Xe

A: Full electronic configuration of an element can be written based on Afbau principle.

Q: P^3- orbital filling diagram

A: Orbital filling diagram is a way to represent the arrangement of electrons in a particular atom.  It…

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

A: Given information,      Element in group 6A

Q: Give three examples of ions that have an electron configurationof nd6 1n = 3, 4, 5,c2.

A: The electrons' distribution in orbitals of any specific atom or ion is designated as its electronic…

Q: ge the following ions in order of increasing ionic radius: bromide ion, selenide ion, strontium ion,…

A: Ionic radius is the distance between nucleus and outmost electrons in ion. In the periodic table,…

Q: If an element's ion, E+, has 10 protons, what is its electronic distribution?

A:

Q: In the three-dimensional structure of methane, CH4, the hydrogen atoms attached to a carbon atom are…

A: Shape of CH4 molecule can be found On the basis of hybridisation as follow:   Atomic number of C = 6…

Q: 2) Write the full orbital diagram for a carbon atom

A: The C atom atomic number is 6. Its electronic configuration is 1s2 2s22p2. The orbital diagram is…

Q: What is the ground state electron configuration for phosphide ion (p3-)? A. Ne 3s2 B. Ne 3s2 3p3 C.…

A: Answer

Q: [Ne]3s23p is the noble gas configuration of

A:

Q: What is the electronic configuration of O- ? O 1s2252p 3s? O 1s°25 2p6 O 1s°25°2p4

A: The number of electrons in neutral atom is equal to its atomic number while in charged atom the…

Q: Write the condensed (noble-gas) electron configuration of Fe³⁺.

A: Fe loses three electrons and form Fe3+ First , we know the atomic number of Fe which is 26 and…

Q: how many valence shell electrons are available in a PO43- anion?

A: Phosphorus belong to Nitrogen family so would have 5 Valence electrons (ns2,np3) Oxygen family have…

Q: Write the ground-state electron configurations of the following ions: a. P– b. Co2+ c. O2– d. Sn4+…

A: Atomic number of P is 15. P has to gain one electron in-order to achieve P- configuration.

Q: Which of the following is the ground state electron configuration of a phosphorus atom? O [Ar]4s? O…

A: Atomic number of Phosphorous is 15