Quantum numbers of the outermost electron in potassium:
.
.
.
Either .
Explanation:
Refer to the electron configuration of a potassium atom. The outermost electron in a ground-state potassium atom is in the orbital (fourth orbital.)
The quantum number (the principal quantum number) specifies the main energy shell of an electron. This electron is in the fourth main energy shell (as seen in the number four in the orbital.) Hence, for this electron.
The quantum number (the angular momentum quantum number) specifies the shape (, , , etc.) of an electron. for orbitals (such as the one that contains this electron.
Quantum numbers and specify the shape of an orbital. On the other hand, the magnetic quantum number specifies the orientation of these orbitals in space.
However, orbitals are spherical. Regardless of the value of , the only possible value for electrons in orbitals is .
The spin quantum number distinguishes between the two electrons in an orbital. The two possible values of are and . Typically, the first electron in an orbital is assigned an upward () spin, which corresponds to .
Ammonia and hydrogen fluoride are both able to exhibit hydrogen bonding due to containing nitrogen (in ammonia) and fluoride (obviously in hydrogen fluoride). Remember the unique qualities of NOF. :)
The density of each piece is the same as that of the original block.
Explanation :
Intensive property : It is defined as a property of substance which does not change as the amount of substance changes.
Examples: Temperature, refractive index, density, hardness, etc.
According to question, if Ana has a block made of pure gold and she cuts this block into two equal pieces then the density of each piece is the same as that of the original block because density is an intensive property that does not changes until and unless material is changed.
That means density remains same as that of the original piece.
Hence, the correct statement is the density of each piece is the same as that of the original block.
Whereas solar energy makes use of the sun to generate energy, geothermal energy makes use of the heat that is trapped deep in the center of the earth. The magma buried deep down of our soil is as hot as the sun’s surface, and some of that heat manages to escape outward. When that happens, we can harness that said heat for energy.