$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$

$\stackrel{40}{19}K, \stackrel{40}{20}Ca$

$\stackrel{15}{7}N, \stackrel{16}{8}Ca$

$\stackrel{35}{17}Cl,\stackrel{35}{17}Cl,$

$\stackrel{23}{11}Na,\stackrel{40}{19}K$