In the electron spin electron configuration (arrow diagram) for oxygen there are
ID: 958968 • Letter: I
Question
In the electron spin electron configuration (arrow diagram) for oxygen there are a total of pairs of electrons and unpaired electrons. Members of a group in the periodic table have similar valence shell electron configurations (noble gas configurations). As a consequence: They have the same number of inner shell electrons. They have the same number of outer shell electrons. They have isotopes with the same number of neutrons. They have similar physical properties. They have similar chemical properties. The molecular formula of sodium carbonate tells us that a single molecule consists of. Two sodium atoms, three carbon atoms, and three oxygen atoms Two sodium atoms, one carbon atom, and three oxygen atoms Six sodium atoms, two carbon atoms, and six oxygen atoms One sodium atom and one carbonate atom Two sodium atoms and three carbonate atomsExplanation / Answer
17.
this is the electron spin configuration of oxygen. As you can see there are 3 pairs of electrons and 2 unpaired electrons
18. Elements of same group has same number of valence electrons. Because of the same number of electrons in the outer shell they react in the same way with other elements to form compounds which have the same chemical properties.
19. Formula of Sodium Carbonate is Na2CO3 . It contains 2 sodium atoms (Na2) one carbon atom, and 3 oxygen atoms