The principal quantum number of the first d shell is three. The principal quantum number determines the size of the orbital. The secondary divides the shell into subshells called orbitals and designated by the letters s, p, d, f. From the sequence of the electron configuration, it can be seen that at a principal quantum number of three the d shell first appear.
1 magnesium atom, 1 sulfur atom, 4 oxygen atoms.
Answer:
The C. Heat
Explanation:
It is logical, when you workout you feel hot cause your body emanates heat
Answer: 88g
Explanation:
11 moles H2 = 11 mole H2O = 5.5 moles O2 = 16*5.5 g
Given : Density of Bromine = 3.12 g/mL
Formula : Density = Mass / Volume
Part A :
Given Volume = 125 mL
Density = Mass / Volume
So, Mass = Density x Volume
= 3.12 x 125
= 390 grams
Part B :
Given mass = 85.0 gm
Density = Mass / Volume
So, Volume = Mass / Density
= 85 / 3.12
= 27.24 mL
