The electron configuration for the strontium atom isnone of these152p1s252p 3s-30D30[Kr] 5s?O INe] 252p Identify ALL of the answers that correctly describe calcium sulfite CaSO3the sulfite is a polyatomic anion with a -3 chargethe sulfite is a polyatomic anion with a -2 chargethis molecule is called calcium sulfitethe calcium is a +3 cationthe calcium is a +2 cationthis molecule is called calcium sulfate

The electronic configuration of an element shows the arrangement of electrons in orbitals of an atom. The condensed electronic configuration has symbol of corresponding noble gas in place of its electronic configuration.The atomic number of strontium is 38 and its electronic configuration is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2. The condensed electronic configuration of Sr is [Kr] 5s2. Therefore, the correct option is [Kr] 5s2.The given compound is CaSO3. The ionization of calcium sulfite is as follows, CaSO3 → Ca2+ + SO32- Thus, calcium ion is a cation with charge of 2 and sulfite ion is an anion having charge of 2. Here calcium ion is a monoatomic ion and sulfite ion is a polyatomic ion, which is made up of sulfur and oxygen. CaSO3 is called calcium sulfite.Therefore, the correct statements are as follows, The sulfite ion is a polyatomic anion with a -2 charge. This molecule is called calcium sulfite. The calcium is a +2 cation.