How do we know that the electron has an electrical mass or is really a lump packet Energy?

Question

If electron can be converted ,how can a charge be converted to energy=negative charge to negative energy and positive charge into positive Energy?Unless the electron charge is already an energy packet?

Answer 1

As Einstein has shown, energy and mass are interchangeable.

Answer 2

This is an excellent question! The charge, spin, etc are not separate properties of the electron, but are fundamental to it. In fact, part of the mass of an electron is from the charge! However, charge and spin and all the other properties of a particle must be conserved. That means that if we convert an electron into energy, we must do it only temporarily, and in the "final state", we must have the same amount of charge as when we began.

As for your second question, when you are converting energy into an electron, you can never do *just* an electron-- you have to do both an electron and a positron. As you may know, the positron is the anti-matter partner to the electron, and as such, it has the opposite charge as an electron. (Notice that that means you start with zero charge-- just energy-- and end with zero charge, as the sum of the charges of the electron and positron charge is zero.) To make both an electron and a positron, you need to have enough energy-- in this case it's 2 * the mass of the electron (since the electron and proton have the same mass) or 511 Mega ElectronVolts of energy. Once you have enough energy, it's just a statistical process as to whether or not anything is made!

Answer 3

We can calculate the mass of electrons by measuring their accelerations in electric and/or magnetic fields.
Electrons have mass.
The rest mass of an electron is about 9.10938188(72) E-31 kg.

We can also measure the charge on an electron, this values comes out to be about -1.602176462(63) E-19 C.
The sign on the charge is purely arbitrary. Do not think that there is some universal meaning to what we call "negative charges" and "positive charges", since there is not....we could just as easily switch the two labels or replace them with "red" and "blue" charges, it would not matter.
Just because something has a "negative" charges does not in any way mean that it has "negative" energy.

Electrons are small enough to exhibit characteristics of both waves and particles (similar to the wave-particle duality of photons). In the quantum mechanical model of the atom, electrons are waves which exist around the nucleus of an atom, unlike the planetary model which takes electrons to be particles which orbit the nucleus not unlike the planets orbit the sun.

Answer 4

Since charge is a conserved quantity, a single electron can not be converted into energy; it is necessary that there also be a positron. Since the positron has a positive charge and the electron a negative charge, the two can annihilate each other to produce a single, very energetic photon--a gamma ray.

Answer 5

E = mc^2; mass m and energy E are equivalent. In fact the rest mass can be defined by m = E/c^2, which has the dimensions of MeV/c^2; where MeV is mega electron Volts.

The rest mass of an electron can be found through experiment. Check this out:

"The objective of this experiment is to determine the electron's charge to mass ratio (e/m).

To meet this objective we will use a vacuum tube capable of producing a visible beam of electrons as shown in Figure 1. (The beam is visible because it excites the low-pressure gas contained in the tube.) When immersed in a magnetic field perpendicular to the beam, the negatively charged electrons will be deflected according to the magnetic force, .

In this experiment, we will be able to determine the e/m ratio by measuring the electrons' potential energy and amount of deflection, and the strength of the magnetic field. Once we have determined e/m, we will use Millikan's value for the electron charge to calculate the electron's mass. " [See source.]

Answer 6

What do you mean by electrical mass exactly?

In fact, electron has a well defined mass, a well defined electrical charge, and obviously as somebody mentioned above, can be converted into energy using formula E=Mc^2.

Answer 7

its all relative