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Radioactivity words

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Played 20

About this activity

Practise your radioactivity key words here!

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United Kingdom

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Radioactivity words
 

Radioactivity wordsOnline version

Practise your radioactivity key words here!

by PD
1

particle consisting of two neutrons and two protons. It is the same as a helium nucleus

2

high energy electromagnetic radiation emitted from the nucleus of an atom

3

in radioactive decay, some unstable nuclei emit this neutral particle to become more stable

4

high-speed electron ejected from the nucleus as a neutron turns into a proton

5

rate at which a source of unstable nuclei decays, measured in becquerel (Bq)

6

the time it takes for the number of nuclei or the activity of a radioactive sample to halve

7

the number of decays recorded each second by a detector such as a Geiger-Muller tube

8

how far radiation can travel through materials

9

being near a radioactive source and exposed to its radiation, without physically touching the source

10

radiation with enough energy to remove electrons from atoms, turning them into ions which damages cells and DNA

11

when radioactive material gets on or inside a person or object

12

process where scientific findings, like studies on the effects of radiation on humans, are shared with other scientists for checking

13

shows radioactive decay, with balanced mass numbers and atomic numbers for the nuclei and emitted radiation

14

to release or give out

15

instrument used to detect ionising radiation

16

atoms of the same element with different numbers of neutrons; some can have unstable nuclei

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