Chemistry · Atomic Structure
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The weight of an electron is:
- A
9.108 × 10−30g
- B
9.108 × 10−25 g
- C
9.108 × 10−31 g
- D
Too less to be measured
9.108 × 10-30 g: This option represents the approximate weight of an electron. It is in the range of the actual mass of an electron, which is approximately 9.109 × 10-30 kg.
Electrons are negatively charged particles weighing zero atomic mass units and located in the various orbitals of the energy levels outside the atomic nucleus. The electron actually weighs 9.11x10-30 grams. This means it would take about 1,830 electrons to equal the mass of one proton.
9.108 × 10−25 g: This option also represents a weight that is too heavy for an electron. Again, the actual weight of an electron is much smaller.
9.108 × 10^−31 g: This option represents the approximate weight of an electron. It is in the range of the actual mass of an electron, which is approximately 9.109 × 10^−31 kg.
Electrons are negatively charged particles weighing zero atomic mass units and located in the various orbitals of the energy levels outside the atomic nucleus. The electron actually weighs 9.11x10-28 grams. This means it would take about 1,830 electrons to equal the mass of one proton.
Tagged under Chemistry · Atomic Structure · 2015