For each of the following pairs of atoms or ions, state which you expect to have the larger radius. (a) N or C (b) Mg or Mg2+ (c) Kr or Sr²+ (d) Rb or Li (e) Kr or Se²-
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- Which one in each pair has the larger radius ? Explain. (a) a magnesium ion or an aluminum ion (b) a sodium atom or a silicon atom (c) a potassium ion or bromide ionWhich of these elements is most likely to form ions with a 2+charge?(a) Li (b) Ca (c) O (d) P (e) ClHow many inner, outer, and valence electrons are present in an atom of each of the following elements? (a) Br (b) Cs (c) Cr (d) Sr (e) F
- Write the ionic charge for each of the following ions as predicted from the group number in the periodic table. (a) Cs ion (b) Ga ion (c) O ion (d) I ionWrite the electron configuration for each of the following ions. (a) Sb3−Write the electron configuration for each of the following ions. (a) Sb^3− (b) Tl+ (c) Se2− (d) Si4+ (e) Cr6+Refer to the periodic table and predict the number of valence electrons for an atom of each of the following representative elements: (a) Na (b) Al (c) S (d) Xe
- Which of the following elements is expected to have the highest SECOND IONIZATION ENERGY: (A) Be (B) Ca (C) Mg (D) NaQuestion A11 (a) Write the full electronic configuration of Cu, using s,p,d,f notation. (b) Complete the table below: Atom/Ion 64 Ni2+ 28 Proton Neutrons Electrons (c) Predict whether Na or Cl has the more stable 1s² shell and explain your rationale. (d) What three factors can influence the Ionization energy of group 2 elements?Predict the larger ion in each of the following pairs. (a) Rb+ or Sr2+ _________rubidium ion or strontium ion (b) Co2+ or Co3+ _________cobalt(II) ion or cobalt(III) ion (c) S- or S2- _________sulfur -1 ion or sulfide ion (d) Br- or I- _________bromide ioniodide ion
- Give the ground-state electron configuration of the following elements. (a) Lithium (b) Sodium62. Draw the electron dot formula for each of the following elements. (a) He (c) Se (e) Cs (b) Pb (d) Ne (f) Ga (h) Br (g) SbRubidium and bromine atoms are depicted at right. (a) What monatomic ions do they form? (b) What electronic feature characterizes this pair of ions, and which noble gas are they related to? (c) Which pair best represents the relative ionic sizes?