The electron charge, often denoted as “e,” is the fundamental unit of electric charge carried by a single electron or proton. It has a value of approximately -1.602 x 10^-19 coulombs. The negative sign indicates that electrons have a negative charge, while protons have an equal positive charge.
The coulomb (C) is the unit of electric charge in the International System of Units (SI). It is defined as the amount of charge transferred when a current of 1 ampere flows for 1 second. In equation form:
1 coulomb = 1 ampere x 1 second
So, the charge of a single electron is approximately -1.602 x 10^-19 coulombs, and the charge of a single proton is +1.602 x 10^-19 coulombs.
1C = 6.24150975 x 1018e
or
1e = 1.60217646 x 10-19C
Q(C) = Q(e) × 1.60217646 x 10-19
Example – Convert 3 electron charge to coulombs:
Ans. Q(C) = 3e × 1.60217646 x 10-19= 4.8065 x 10-19C
| Charge (electron charge) | Charge (coulomb) |
| 0 e | 0 C |
| 1 e | 1.60217646⋅10-19 C |
| 10 e | 1.60217646⋅10-18 C |
| 100 e | 1.60217646⋅10-17 C |
| 1000 e | 1.60217646⋅10-16 C |
| 10000 e | 1.60217646⋅10-15 C |
| 100000 e | 1.60217646⋅10-14 C |
| 1000000 e | 1.60217646⋅10-13 C |
To convert from electrons to coulombs, you can use the elementary charge value, which is approximately 1.602 × 10^-19 coulombs. Multiply the number of electrons by this value to obtain the charge in coulombs.
1 electron is equivalent to approximately -1.602 × 10^-19 coulombs. Electrons carry a negative elementary charge.
No, 1 coulomb is not equal to 1 electron. 1 coulomb is a unit of electric charge, while 1 electron has a charge of approximately -1.602 × 10^-19 coulombs.
To convert a charge in coulombs to the number of electrons, divide the magnitude of the charge by the elementary charge (approximately 1.602 × 10^-19 coulombs). This will give you the number of electrons.
There are approximately 6.242 × 10^18 coulombs in 1 mole of electrons. This conversion is based on Avogadro's number and the elementary charge.
The charge of 1 mole of electrons is approximately -9.648 × 10^4 coulombs. This value is obtained by multiplying Avogadro's number (6.022 × 10^23) by the elementary charge.
The mass of 1 electron is approximately 9.109 × 10^-31 kilograms. Electrons are incredibly lightweight subatomic particles.