Interpretation:
The correct electron configuration of
Concept introduction:
The number of electrons in an element is equal to its
General rules for writing electron configuration:
Electrons will reside in the available orbitals of lowest possible energy.
Each orbital can accommodate a maximum of two electrons.
Electrons will not pair in degenerate orbitals if an empty orbital is available.
Orbitals will fill in order of increasing energy
s-orbital can have 0–2 electrons.
p-orbital can have 0–6 electrons.
d-orbital can have 0–10 electrons.
f-orbital can have 0–14 electrons.
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Chemistry
- Draw the orbital diagram associated with each of the following electron configurations. a. 1s22s22p5 b. 1s22s22p63s1 c. 1s22s22p63s23p1 d. 1s22s22p63s23p64s23d5arrow_forwardWhich ion with a +1 charge has the electron configuration 1s22s22p63s23p63d104s24p6? Which ion with a —2 charge has this configuration?arrow_forwardHow many unpaired electrons are there 111 the following ions? (a) V3+(b) Sn4+(c) I-(d) W4+arrow_forward
- Write the symbol of each element described below. (a) largest atomic radius in Group 1 (b) smallest atomic radius in period 3 (c) largest first ionization energy in Group 2 (d) most electronegative in Group 16 (e) element(s) in period 2 with no unpaired p electron (f) abbreviated electron configuration is [Ar] 4s23d3 (g) A +2 ion with abbreviated electron configuration [Ar]3d5 (h) A transition metal in period 4 forming a +2 ion with no unpaired electronsarrow_forwardWrite the electron configurations far each of the following elements: (a) Sc. (b) Ti. (c) Cr. (d) Fe. (e) Ruarrow_forwardAnswer the questions below concerning ground state electron configurations. (a) What element has the electron configuration [Ar]3d64s2? (b) What element has a 2+ ion with the configuration [Ar]3d5? Is the ion paramagnetic or diamagnetic? (c) Mow many unpaired electrons are in a Ni2+ ion? (d) The configuration for an element is given here. What is the identity of the element? Is a sample of the element paramagnetic or diamagnetic? How many unpaired electrons does a 3 ion of this element have? (e) What element has the following electron configuration? Write a complete set of quantum numbers for electrons 1-3.arrow_forward
- Name the element corresponding to each characteristic below. (a) the element with the electron configuration 1s22s22p63s23p3 (b) the alkaline earth element with the smallest atomic radius (c) the element with the largest ionization energy in Croup 5A (d) the element whose 2+ ion has the configuration [Kr]4d5 (e) the element with the most negative electron attachment enthalpy in Croup 7A (f) the element whose electron configuration is [Ar]3d104s2arrow_forwardWhat neutral atoms are isoelectronic with the following ions? (a) Pb4+ (b) Br (c) S2 (d) Ni3+arrow_forwardName and give the symbol of the element that has the characteristic given below. (a) Its electron configuration in the excited state can be 1s22s22p63s1 3p3. (b) It is the least electronegative element in period 3. (c) Its +3 ion has the configuration [36Kr]. (d) It is the halogen with the largest atomic radius. (e) It has the largest ionization energy in Group 16.arrow_forward
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