Strontium has a visible line in its spectrum at 539.8 nm. What is its energy in kJ/mol?

What is the maximum number of Cs+ ions that can be produced per joule of energy absorbed by a sample of gaseous Cs atoms?

The energy required to remove the second electron from a gaseous lithium in the gound state is 1.212 x 10^-17 joules. What is the value of IE2 for lithium

Decide whether the proposed Lewis structure below is reasonable. proposed Lewis structure Is this a reasonable structure? H H O Yes O No H H. H. H. H. O Yes T O)

lonization energy: The minimum energy needed to remove an electron from an atom. le. If the atom is a mom at the county fair, what are the chances she'll lose one of her electron children? INCREASING IONIZATION ENERGY 12 13 14 15 17 %3D Mg 16 Ar 19 22 Ti 23 24 Cr 25 Mn 26 Fe 27 Co 28 NI 29 Cu 30 Zn 32 Ge 33 As 34 Se 35 36 Kr Se Ga Br A 41 Te 39 40 41 42 46 47 30 52 53 54 Rb Sr Zr Nb Mo Ru Pd Ag Cd In Sa Sb Te Xe 35 36 72 37 La 73 14 75 76 77 Ba Hr Ta Re Os Ir Au Hg TI Ph Po Ra 87 104 113 T14 107 Bh 106 109 112 Fr Ra Ac Rr Sg Hs Mt Describe the trend you see above From top to bottom From L to right: Explain the trends you describe: Vertical: Horizontal: Which will have a higher ionization energy, For CI? Put the following in order from lowest to highest ionization energy: K, Ca, Rb, Kr Bonus: Why is the ionization energy of K' so much higher than for K? INCREASING IONIZATION ENERGY

Which of these spheres represents F, which represents Br,and which represents Br-?

Rank the following species in terms of increasing size:F, H, Te, N, O, Br-, I-.

Which will experience the greater effective nuclear charge,the electrons in the n = 3 shell in Ar or the n = 3 shell in Kr?Which will be closer to the nucleus?

Arrange each of the following series of atoms in order of decreasing ionization energy: Fr, Ba, Y, Ne, Ar, Kr

element X has an electron affinity of 295.3 kJ/mol and the following ionization energies (in kJ/mol): IE1 = 1.008e3, IE2 = 1.846e3, IE3 = 3.20e3. In what column of the periodic table is this element probably found?