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3 years ago

An electron has _____

Physics

2 answers:

Soloha48 [4]3 years ago

8 0

Answer:

option (D)

Explanation:

The elementary particles of atom are protons, neutrons and electrons. The protons and neutrons are residing in the nucleus and electron revolves around the nucleus in fixed stationary orbits.

The mass of proton and a neutron is almost same and equal to 1.67 x 10^-27 Kg.

The mass of an electron is 9.1 x 10^-31 Kg.

The mass of electron is much less than the mass of proton or a neutron.

Proton is 1837 times heavier than the electron.

Marrrta [24]3 years ago

3 0

a proton and neutron weigh about the same, while an electron is about 1/2000 of the weight of either a proton or neutron

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In a particular run of the “Archimedes principle” experiment a particular unknown substance is found to have a “dry mass” of 4.5

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Answer:

D = 18000 kg/m3

V = 2.5*10{-7}m3

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From the Archimedes principle,

Weight of fluid displaced = W_{air} - W_{water}

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