-12A negative times a positive is always a negative.A negative times a negative is always positive.
Adding two negative numbers will always be negative. Subtracting two negative numbers may be positive or negative. Dividing or multiplying two negative numbers will always be positive.No
If you multiply a positive number by a negative it always equals a negative number.Depends what you mean by "and".If they're added: neverIf they're subtracted: sometimesIf they're multiplied or divided: always
Not always because it can also be negative
The result will always be negative. Positive X Positive = Positive Negative X Negative = Positive Positive X Negative = Negative
direction of electron spin
spin quantum number
A quantum state with zero spin is a state where the angular momentum of the system is zero. This means that the system has no intrinsic angular momentum or spin. In other words, it has a spin quantum number of 0.
it is isospin - In physics, and specifically, particle physics, isospin (isotopic spin, isobaric spin) is a quantum number
Four quantum numbers are used to describe electrons. The principle quantum number is the energy level of an electron. The angular momentum number is the shape of the orbital holding the electron. The magnetic quantum number is the position of an orbital holding an electron. The spin quantum number is the spin of an electron.
Good question! Experiments show that the electron "behaves" as if it is a spinning ball of charge. But be careful...the electron IS NOT a spinning ball of charge. Instead the concept is quantum mechanical and has no actual classical analogy. why we r taking the spin of the electorn is +1/2 or -1/2 is there any relation bet rotational symmetry
Ullenbeck and Gowdsmith
Yes. Always. Otherwise they would break the fundamental rules of quantum mechanics, which say that no two electrons can have the same four quantum numbers -- and spin is the 4th quantum number. If two e- are in the same orbital, they share 3 quantum numbers, but the spin quantum number must then be different.
They are the 2 states an atom can be in, as defined in the EPR paradox.
Spin.
All four quantum numbers i.e principle ,azimuthal or subsidiary, magnetic and spin quantum numbers are required to specify a single atomic orbital.
The spin quantum number was created in the early twentieth century to account for the magnetic properties of the electron. It has only two possible values, +1/2 and -1/2, which indicates the two possible spin states of the electron. A single orbital can hold up to 2 electrons, which must have opposite spin states.