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ID number:972598
 
Evaluation:
Published: 20.09.2007.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Alfa starojums
To veido alfa daļiņas, kas sastāv no diviem protoniem un diviem neitroniem. Gaisā tās nespēj pārvietoties tālāk kā 2,5-7,5 cm, un tās var apturēt ar papīra lapu;
Beta starojums
Tie ir elektroni ar relatīvi lielu enerģiju, kas gaisā pārvietojas apmēram 2 m. Tos var apturēt pāris milimetru bieza metāla plāksne;…

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