: In the following pairs, predict which one will have a HIGHER ionization energy. Provide justification...
: In the following pairs, predict which one will have a HIGHER ionization energy. Provide justification for full credit (3 pts). A. Cesium or barium B. Ni+ or Ni2+ C. Polonium or astatine
Homework Answers
A) Barium > Cesium as Ba has 6s2 while Cs has 6s1 valence configuration. And as we move from left to right across the period the effective nuclear charge increases, thus IE also increases.
B) Ni+2 has higher as it is doubly positively charged. To remove an electron from more positively charged species requires more energy.
C) At > Po. as we move from left to right across the period the effective nuclear charge increases, thus IE also increases.
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: In the following pairs, predict which one will have a HIGHER
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Question 3: Predict which solutions will have a higher electrical conductivity. Justify your choice for full credit (4 pts) A. 0.200 M NaCl or 0.150 M CaCl2 B. 14.22 g of cobalt(II) nitrate in 57.8 mL of water or 9.528 g of copper (II) chloride in 32.9 mL of water.
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For each of the following pairs of gases choose that one which would be expected to have the higher solubility in water, at a given temperature. In each gas justify your answer in ono sontence a). O=C=0 or 0=0 2 1 b). 2He or 88 Rn 3 4 (e). NH, or :NEN: 5 6 a). choice justification b). choice justification justification
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