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WS17B What Is Radioactivity?

Authored by Han Kuang

Physics

10th Grade

WS17B What Is Radioactivity?
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12 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Nuclear decay is a ____ process by which an unstable atomic nucleus ____ energy by emission of electromagnetic radiation or particle(s).

regular, loses

regular, gains

random, loses

random, gains

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Nuclear decay is also known as ___ ___ or ___.

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Ionisation refers to the ability to eject ____ from ____ to form ____. Since electrons are ejected, there will always be ___ protons than electrons. ___ are formed and they carry a ____.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

____ have the highest ionising effect.

____ have the highest penetrating ability.

alpha (α) particles,

gamma (γ) rays

alpha (α) particles,

beta (β) particles

gamma (γ) rays,

alpha (α) particles

gamma (γ) rays,

beta (β) particles

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

____ have the lowest ionising effect.

____ have the least penetrating ability.

alpha (α) particles,

gamma (γ) rays

alpha (α) particles,

beta (β) particles

gamma (γ) rays,

alpha (α) particles

gamma (γ) rays,

beta (β) particles

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

____ have both medium ionising effect and medium penetrating ability.

alpha (α) particles

beta (β) particles

gamma (γ) rays

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

An alpha (α) particle consists of 2 ___ and 2 ____ tightly bound together and is the ____ particle.

A beta (β) particle consists of _____.

When alpha (α) and beta (β) particles are emitted, ____ (γ) rays are also usually emitted.

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