Write the group number using both A/B and 1 to 18 notations for elements that have the following outer electron configuration:
a.
b.
c.
d.
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Chapter 5 Solutions
Modified MasteringChemistry with Pearson eText - Valuepack Access Card - for General, Organic, and Biological Chemistry: Structures of Life
- An unknown element is a nonmetal and has a valence electron configuration of ns2np4 a. How many valence electrons does this element have? b. What are some possible identities for this element? c. What is the formula of the compound this element would form with potassium? d. Would this element have a larger or smaller radius than barium? e. Would lhis element have a greater or smaller ionization energy than fluorine?arrow_forwardAnswer the questions below about the elements A and B, which haw the electron configurations shown. A = [Kr]5s1 B =[Ar]3d104s24p4 (a) Is element A a metal, nonmetal, or metalloid? (b) Which element has the greater ionization energy? (c) Which element has the less negative electron attachment enthalpy? (d) Which element has the larger atomic radius? (e) What is the formula for a compound formed between A and B?arrow_forwardHow many valence electrons do each of the following elements have, and what are the specific valence electrons for each element? a. Ca b.O c. element 117 d. In e. Ar f. Biarrow_forward
- Compare the elements B. Al, C, and Si. (a) Which has the most metallic character? (b) Which has the largest atomic radius? (c) Which has the most negative electron attachment enthalpy? (d) Place the three elements B, Al, and C in order of increasing first ionization energy.arrow_forwardSelect the larger member of each pair. (a) Ca and Ca2+ (b) Sr and Sr2+ (c) F and F- (d) Cu+ and Cu2+arrow_forwardGive electron configurations according to the Bohr model for each of the following elements. Try to not use Figure 3.11, but instead determine the configuration based on your knowledge of the number of electrons in each atom and the maximum number of electrons in each Bohr orbit. Indicate which of these elements you expect to be the most reactive and the least reactive. a. B b. Si c. Ca d. F e. Ararrow_forward
- Which ion with a +1 charge has the electron configuration 1s22s22p63s23p63d104s24p6? Which ion with a —2 charge has this configuration?arrow_forwardSelect the smaller member of each pair. (a) P and P3- (b) V2+ and V4+ (c) K and K+ (d) Co and Co3+arrow_forwardThe deep blue color of sapphires comes from the presence of Fe2+ and Ti4+ in solid Al2O3. Using spdf notation with the noble gas notation, write the electron configuration for each of these ions.arrow_forward
- Answer 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_forwardDraw the orbital diagram for the valence shell of each of the following atoms (a) C (b) P (c) V (d) Sb (e) Ruarrow_forward
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