Choose the correct statements regarding the characteristics of alpha particles.

Alpha particles are negatively charged species

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Alpha particles are positively charged species

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Alpha particle = Helium nucleus

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Alpha particles are electrically neutral

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Solution

The correct options are
B Alpha particles are positively charged species
C Alpha particle = Helium nucleus
Alpha particles are identical to helium nucleus. When electrons are removed from helium atom, only two protons are left in its nucleus which makes it positively charged. In Rutherford's experiment, the alpha particles are repelled by the nucleus. This shows that alpha particles are positively charged.

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Similar questions

Everything is made of atoms and every atom has a nucleus composed of positively charged particles called protons, with some neutrally charged particles known as neutrons. The particles that orbit around the nucleus that is negatively charged are known as________.

Q. Alpha particles are positively charged and contains the nucleus of ________ atom.

Q. The sum of all electromagnetic forces between different particles of a system of charged particles is zero
(a) only if all the particles are positively charged
(b) only if all the particles are negatively charged
(c) only if half the particles are positively charged and half are negatively charged
(d) irrespective of the signs of the charges.

In a given electric field,

β -

particles are deflected more than

α -

particles, inspite of

α -

particles having larger charge.

Q. Why can't Alpha particles be 4 times charged hydrogen atoms?
why are they double charged Helium atoms

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