Which out of the following statements is a characteristic of an alpha particle?

I. It is positively charged.

II. It has no mass or charge.

III. It's symbol is $_{- 1}^{0} e$ .

IV. It has poor penetrating ability.

I only

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II only

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III and IV

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I and IV

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Solution

The correct option is D
I and IV

Alpha particles are doubly charged helium nuclei and have very poor penetrating power, i.e. it can even be stopped by a few sheets of paper.

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Which out of the following statements is a characteristic of an alpha particle? I. It is positively charged. II. It has no mass or charge. III. It's symbol is 0−1e. IV. It has poor penetrating ability.

The correct option is D I and IV Alpha particles are doubly charged helium nuclei and have very poor penetrating power, i.e. it can even be stopped by a few sheets of paper.

Which out of the following statements is a characteristic of an alpha particle?

I. It is positively charged.

II. It has no mass or charge.

III. It's symbol is $_{- 1}^{0} e$ .

IV. It has poor penetrating ability.

The correct option is D
I and IV

Alpha particles are doubly charged helium nuclei and have very poor penetrating power, i.e. it can even be stopped by a few sheets of paper.