Which is the first period on the periodic table that these elements could be in? Explain. Why are the second ionization energies of both elements larger than their respective first ionization energies? It is found that Y has the largest first ionization energy in the period that it is found. What does this tell us about Y? It is found that element Q, which is in the same period as X and Y but lies to the left of element X in the periodic table, only has values for its first four ionization energies. Suggest a reason for this observation. (a) Define ionization. (b) Write an equation to show the second ionization energy of calcium. Why does N have a higher first IE than O? Explain using orbital notations. Why does Be have a higher IE than B? Explain using orbital notations. BONDING REVIEW 1. Use information in the table below to identify each compound as Ionic or Covalent Compounds. Compound Phase at Conductivity Conductivity as a Melting Ionic or Room as a pure solid liquid Point Covalent Temperature (aq or molten) A solid no yes 1049oC B solid no no 223oC C liquid no no 20oC D solid no yes 378oC E liquid no no -94oC F solid no yes 650oC List the properties of compounds: _________________________________________________________
Which is the first period on the periodic table that these elements could be in? Explain. Why are the second ionization energies of both elements larger than their respective first ionization energies? It is found that Y has the largest first ionization energy in the period that it is found. What does this tell us about Y? It is found that element Q, which is in the same period as X and Y but lies to the left of element X in the periodic table, only has values for its first four ionization energies. Suggest a reason for this observation. (a) Define ionization. (b) Write an equation to show the second ionization energy of calcium. Why does N have a higher first IE than O? Explain using orbital notations. Why does Be have a higher IE than B? Explain using orbital notations. BONDING REVIEW 1. Use information in the table below to identify each compound as Ionic or Covalent Compounds. Compound Phase at Room Temperature Conductivity as a pure solid Conductivity as a liquid (aq or molten) Melting Point Ionic or Covalent A solid no yes 1049oC B solid no no 223oC C liquid no no 20oC D solid no yes 378oC E liquid no no -94oC F solid no yes 650oC List the properties of compounds: _________________________________________________________
unit_3_periodic_table_class_packet.docx