Answer:
Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron, and all electrons in singly occupied orbitals must have the same spin state. Noble-gas configuration refers to an outer main energy level occupied, in most cases, by eight electrons.
Explanation:
I hope this helps you.
Answer:
I am using an example for this in this table it works for any other compound as well.
Answer:
3.08 × 10⁻³ M
Explanation:
A chemist prepares a solution by adding 422 mg (0.422 g) of Co(NO₃)₂. The moles of solute associated with this mass, considering that the molar mass is 182.94 g/mol, are:
0.422 g × (1 mol/182.94 g) = 2.31 × 10⁻³ mol
The volume of the solution is 750 mL = 0.750 L.
The molarity of Co(NO₃)₂ is:
M = moles of solute / liters of solution
M = 2.31 × 10⁻³ mol / 0.750 L
M = 3.08 × 10⁻³ M
Elements with the same number of protons but a different of neutrons is an
Isotope
or C
