Solution: For a hydrogen atom, the energy of a 5p orbital is (circle o...

Which of the following represents an excited state of an atom? a) 1s22s2  b)...

What is the electron configuration of Fe3+? a) [Ar]4s23d5  b) [Ar]4s23d3  c...

Which of the following electron configurations is correct for molybdenum, 42Mo...

What is the valence-shell electron configuration for the shaded group in the p...

Which atom below contains the greatest number of valence electrons? A. Se B ...

Which of the following electron configurations is correct for antimony ( 51Sb)...

The only noble gas that does not have the ns 2 np6 valence electron configurat...

Give the full ground-state electron configuration for the element. S a. 1s22s...

When forming cations, electrons are removed first from orbitals that are bigge...

An element E has the electronic outer shell configuration ns2 np4. What is the...

What is the electron configuration for the Ni 2+ ion? a. [Ar]3d 8 4s 2 b. [A...

Which of the following atoms is listed with an INCORRECT electron configuratio...

Which of the following is the correct electron configuration for the ferric ca...

Write the electron configurations for the following ions or elements: example:...

What is the expected ground state electron configuration for Zr 2+ ? 1. [Xe] ...

 Give the electron configuration for the Ti 2+ ion. ...

When dealing with electron configurations it's best to visualize the Periodic ...

The electronic configuration of Zn2+ is  A. [Ar] 4s2 3d10 B. [Ar] 4s0 3d10 C....

Which of the following statements is/are true? i. the electron configuration ...

What is the electronic configuration of Ga 3+ ion? ( Ga has an atomic number o...

Which of the following statements is/are true? i. the electron configuration ...

Write the ground-state electron configuration of a lead atom. 1. [Xe] 4f 145d...

How many p electrons does Se (atomic number 34) possess? 1. 6 2. 10 3. 12 ...

Which of the following species is isoelectronic with S  2–? 1. Rb+ 2. Br – ...

Choose the ground state electron configuration for Fe 2+. a. [Ar]4s03d2 b. [...

One of the following does NOT represent the ground state electron configuratio...

What is the electronic configuration of tellurium (Te)? 1. 1s2 2s2 2p6 3s2 3p...

Which species has this ground-state electron arrangement? 1s22s22p63s23p63d10...

The ground-state electronic configuration of the manganese atom, Mn, is (A) 1...

Which electron configuration is impossible? (A) 1s22s22p63s2 (B) 1s22s22p62d...

What is the valence electron configuration for the element in Period 5, Group ...

In which pair are the two species  both isoelectric and isotopic?   ...

An argon atom is isoelectronic with (A) Cl (B) Ca (C) Ti4+ (D) N3- ...

A student wrote that an element had the electron configuration 1s22s22p63s23p6...

Which of the following is the correct electron configuration for nitride ion? ...

All of the following electronic configurations are correct  except a) 20Ca  [...

How many electrons does a stable gallium,  31Ga3+, ion have? a) 28 b) 29 c)...

Which one of the following  species is  not isoelectronic with Kr? a) Xe b) ...

How many core electrons does an atom of bromine have? a) 35 b) 36 c) 30 d)...

Which ground-state electron configuration is  incorrect? a) Cr: [Ar]3d6 b) C...

Which of the following sets contains species that are isoelectronic? A) Cl, A...

 Write the electronic configuration for the following elements and ions: i. O...

How many inner shell (core) electrons do the following elements have, respecti...

Choose the ground state electron configuration for Mn 4+. a.  [Ar] b.  [Ar]4...

Molybdenum (Mo) is an element in which the spin pairing energy is > than th...

Write the electron configurations for the following elements and ions. a) V2+...

Which of the following ions have the same ground state electron configuration:...

If the ground state electron configuration of an element is [Ar]3d 104s24p3, w...

Which element has the fewest number of valence electrons? a) Rb b) Se c) Ba...

The C+ cation has how many total electrons and how many valence electrons? 1....

Write the ground-state electron configuration of a lead atom. 1. [Xe] 4ƒ145d1...

How many p electrons does Se (atomic number 34) possess? 1. 6 2. 10 3. 12 ...

Which of the following species is isoelectronic with S2- ?  1. Rb+ 2. Br – ...

Which element has an outer electron configuration of ns 2np4? 1. Se 2. Mo 3...

The electron configuration of Cr 3+ is 1. [Ar]4s13d5 2. [Ar]3d3 3. [Ar]4s23...

How many core and valence electrons does an atom of bromine possess? A. 18 co...

Choose the electron configuration for Cr 3+ . A. [Ar] B. [Ar]4s13d2 C. [Ar...

Which two elements have the same ground-state electron configuration? A. Cl a...

The electron configuration for Ge is __________. A. 1s 22s 22p 63s 23p 64s 24...

Which of the following is a reasonable electronic configuration for neutral Ti...

Which is a possible electronic configuration for neutral silicon? a. [Ne]3s23...