Which would you expect to have a higher (more positive) first ionization energy,
ID: 1056185 • Letter: W
Question
Which would you expect to have a higher (more positive) first ionization energy, K or O? Which would you expect to have a larger atomic radius, Li or F? Which would you expect to have a greater (more negative) electron affinity, Ca or Br? Write the ion which would be the most stable for the following atoms: of Li: of F: of Se: of Ca: of Al: Which of the following pairs of oxides, CO_2 and CaO, would you expect to be ionic, rather than molecular? form an acid when mixed with water? form a salt when mixed with an acid? Identify each of the following as having ionic, metallic, or covalent bonding. MgO C_6H_12O_6 S_8 Al_2O_3 PdExplanation / Answer
1.
firs ionization energy --> energy required to form an ion...
clearly Oxygen require more energy, since it has 6 electrons in it valence vs. K which ahs only 1.
2.
larger atomic radius will be lithium, since it is possitively charged, whereas fluorine is negatively charged
this will decrease the distance between charges
3.
electron affinity --> Bromine, since it has 7 electrons in it valence whereas the Calcium has only 2... therefor Bromine has much higher affinity to electrons
4.
Li --> Li+
F --> F-
Se --> Se-2
Ca --> Ca+2
Al --> Al+3
5
CO2 --> molecular
CaO --> ionic, due to difference
b)
CO2 will form acd --> CO2 + H2O = H2CO3
c)
salt with acid
CaO + 2HCl = CaCl2
6
MgO = ionic
b)
molecular (covalent bonding)
c)
molecular (covalent bonding)
d)
Al2O3 = ionic
e)
Pd --> metallic
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