30 points what does a set of four quantum numbers tell you about an electron? compare and contrast the locations and properties of two electrons with quantum number sets (4, 3, 1, +½) and (4, 3, -1, +½)

The first number is the principle quantum number and tells you the energy level of the electron.

The second number is the orbital quantum number and tells you the orbital angular momentum of the electron.

The third number is the magnetic quantum number and tells you the configuration of the orbit given a specific orbital angular momentum.

The fourth number is the spin of the electron (up or down).

Those two electrons are both in the 4th energy level, with an orbital quantum number of 3 (f shell), but with different configurations (the projection of their orbital angular momentum to a specified axis is different). They are both spin up.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

c. orbital shape i hope this is correct