Which of the following species does not have a ground-state noble-gas electron configuration? Question 10Select one: a. Ca2+ b. Mg2+ c. Kr d. I− e. F

Which pair of elements would you expect to have the most similar atomic radii, and why?a. Si and Gab. Si and Gec. Si and As

Consider the Lewis electron formulas for the following four Lanthanum has dots and a charge of Lanthanum ion has dots and a charge of Sulfur has dots and a charge of Sulfide ion has dots and a charge of а. -2 b. -4 C. +2 or 2 d. +4 or 4 е. +3 or 3 f. 8 g. 0 h. 6 i. 10

Draw the 3D structure of BrF₂ (N.B. Br is the central atom). Br and F are both in group 7 and their atomic numbers are 35 and 9. Draw the 3D structure of BrF5 (N.B. Br is the central atom). Br and F are both in group 7 and their atomic numbers are 35 and 9. ) Draw the 3D structure of BrF (N.B. Br is the central atom). Br and F are both in group 7 and their atomic numbers are 35 and 9.

Question 3 What name is used to indicate when the atoms or ions have all paired electrones: a. ferromagnetic. O b.isoelectronic. O c. diamagnetic. O d. paramagnetic. O e. lanthanides. A Click Submit to complete this assessment.