Arrange the following sets of ions in order of decreasing ionic radii. Br, Cl, I, Se? Cst, Fr+, Rb+

Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in order of decreasing size. atoms or ions in order atoms or ions of decreasing size Ве, Ne, O O. 0. 0 0. 0. 0 2+ Sr Sr, Ba Ne, F , F 0.0.0

Using the periodic table as a guide, which of the following choices orders the elements correctly based on the trend stated (there may be more than one correct answer) Ionic Radii: N-3 > O2- > F- > K+ > Ne Atomic Radii:Sn > Ge > C > Si First ionization Energies: F > Cl > I > Br Electronegativity: I > Cl > Br > F ElectronAffinities:N > C > O > F .

11. How do the core charges for H, Li, and Na compare to each other? Based on this answer and their respective ionization energies, which species has the valence shell with the largest radius? Which has the valence shell with the smallest radius? 12. Can you deduce a trend in ionization energy as you move from left to right across a period (row)? Can you deduce a trend in core charge as you move from left to right across a period (row)? Explain.

Arrange strontium, cesium, iodine, and lead in order of increasing atomic size using general periodic table trends.     Cs < Sr < Pb < I     I < Sr < Pb < Cs     Sr < Cs < I < Pb     Sr < I < Cs < Pb

What of the following statments is true? - N2+ has a smaller ionic radius than N3+. - Iron has 6 valence electrons. - Cl– is isoelectronic with P3–. - The effective nuclear charge for an atom is less than the actual nuclear charge due to penetration. - P is more electronegative than S.

Which of the following groups of elements are not all metals? O AI, Zn, As Bi, W, Mo Ba, Sr, Pb Ag, Au, Zn

Indicate which one statement is not true by checking the box in front of the untrue statement.     The ionic radius of a sodium ion is larger than the atomic radius of a sodium atom.     The ionic radius of a chloride ion is larger than the atomic radius of a chlorine atom.     The ionic radius of a calcium ion is smaller than the atomic radius of a bromide ion.     The ionic radius of a calcium ion is smaller than the atomic radius of a potassium ion.     The ionic radius of a nickel(II) ion is smaller than the atomic radius of a nickel atom.

Which of the following statements about the alkali metals (group 1A) are true? I. Their ionic radii follow the trend Li* > Na* > K* > Rb* II. Their first ionization energies follow the trend Li* > Na* > K* > Rb* III. Their reactivity follows the trend Li > Na > K > Rb IV. They have two valence electrons in their neutral atomic form. I only O Il only IV only I and III only O Il and II only

Two sets of ionizations are shown in the tables below. Complete the tables by ordering each set of ionizations by increasing amount of energy required. In other words, for each set choose "1" next to the ionization that would require the least energy, "2" next to the ionization that would require the next least energy, and so on. ionization + Pb → Pb + e He + ► F + e F→>> + - → He + e ? ? energy required ? V ionization + Br Br + e → + Sn Sn +e + He → He + e energy required ✓ ? 1 (least) 2 3 (most)