moseley made revisions to the periodic table that resolved some of the problems with mendeleev’s version. which of these was a r
1 answer:
You might be interested in
<span>5 electrons
</span>The electron configuration of an atom shows or describes the distribution of electrons in their atomic orbitals. In particular, it shows the distribution in terms of the principal energy levels or electron shells (reflected by the numbers 1, 2, 3, 4, 5, 6, 7) and their corresponding subshells (reflected by the letters s,p,d,f,g) composed of atomic orbitals.
The maximum number of electrons in the s-subshell is 2, in the p-subshell, 6, in the d-subshell, 10, in the f-subshell, 14, and in the g-subshell, 18. In the electron configuration of an atom, the number of electrons in the subshell for a given atom is reflected by a number (in superscript) next to the corresponding letter of the subshell.
<span>The electron configuration of a chlorine atom in its ground state is
</span>
Thus, the number of electrons in the 3rd energy level in the p-subshell is 5 (
as seen in the electron configuration of the atom).
</span>The electron configuration of an atom shows or describes the distribution of electrons in their atomic orbitals. In particular, it shows the distribution in terms of the principal energy levels or electron shells (reflected by the numbers 1, 2, 3, 4, 5, 6, 7) and their corresponding subshells (reflected by the letters s,p,d,f,g) composed of atomic orbitals.
The maximum number of electrons in the s-subshell is 2, in the p-subshell, 6, in the d-subshell, 10, in the f-subshell, 14, and in the g-subshell, 18. In the electron configuration of an atom, the number of electrons in the subshell for a given atom is reflected by a number (in superscript) next to the corresponding letter of the subshell.
<span>The electron configuration of a chlorine atom in its ground state is
</span>
Thus, the number of electrons in the 3rd energy level in the p-subshell is 5 (
Answer:
A) The partial presssure of CO₂ is 167 mm Hg
B) The partial presssure of N₂ is 354 mm Hg
C) The partial presssure of Ar is 235 mm Hg
D) The partial presssure of H₂ is 86 mm Hg
Explanation:
Dalton's law of partial pressures is basically expressed by the following statement:
The total pressure of a mixture is equal to the sum of the partial pressures of its components.
So initially we have:
= total presure of the system (675 mm Hg).
= partial pressure of N₂ (354 mm Hg).
= partial pressure of Ar (235 mm Hg).
Using Dalton's law we can find the partial pressure of H₂:
675 mm Hg=354 mm Hg + 235 mm Hg +
= 675 mm Hg - 354 mm Hg - 235 mm Hg
=86 mm Hg
If CO₂ gas is added to the mixture, at constant temperature, and the volume is the same, the difference between the new total pressure and the previous total pressure is equal to the partial pressure of CO₂.
842 mm Hg= 354 mm Hg + 235 mm Hg + 86 mm Hg +
= 842 mm Hg - 354 mm Hg - 235 mm Hg - 86 mm Hg
= 167 mm Hg