Thus, the fourth level can hold up to 32electrons: 2 in the s orbital, 6 in the three p orbitals, 10 in the five d orbitals, and 14 in the seven f orbitals. The sublevels of the first four principal energy levels and the maximum number of electrons that the sublevels can contain are summarized in Table 5.1.
hope this helps.
Answer:
Ca2+ represents an ion with 20 protons and 18 electrons.
Explanation:
A calcium atom has 20 protons and 20 electrons. The 2+ charge next to the symbol indicates a loss of two electrons: 20-2=18.
The best answer would be answer B. "the atom has a cloud of positive charge....."
Answer:
3/4
Explanation:
2Al2O3 → 4Al + 3O2
Molar ratio of oxygen to aluminum is 3/4.