Ii-bob. Atom tuzilishi va yadro reaksiyalari Mavzuga oid testlar

E) yadrodagi bitta neytron protonga aylanadi va elektron ajralib chiqadi

300. yadro reaksiyasida qanday zarracha ajralib chiqadi?

A) proton B) neytron C) -zarracha

D) -zarracha E) geliy atomi

301. yadro reaksiyasida qanday zarracha ajralib chiqadi?

A) proton B) neytron C) -zarracha

D) geliy atomi E) ikkita proton

302. yadro reaksiyasidagi X-zarrachani, massasi va zaryadini aniqlang.

A) -zarracha, 1,0 B) -zarracha, 4,+2

C) -zarracha, 2,+2 D) -zarracha, 1,-1

E) -zarracha, 1,-1

303. Yadro reaksiyasida izotopning massa soni o’zgarmay yadro zaryadi ortadigan jarayonni ko’rsating.

1) ; 2) ; 3)

A) 1,2 B) 1,3 C) 2 D) 2,3 E) 3

304. Yadro reaksiyasida izotopning massa soni o’zgarmay yadro zaryadi kamayadigan jarayonni ko’rsating.

1) -parchalanish; 2) -parchalanish;

3) ; 4) ; 5)

A) 1,2 B) 1,3 C) 2,4 D) 1,5 E) 3,5

305. yadro reaksiyasida X-izotopni ko’rsating.

A) B) C) D) E)

306. ²³⁸₉₂U atomi yadrosi radioaktiv parchalanish natijasida ²²⁶₈₈Ra yadrosiga aylandi. Dastlabki yadro o’zidan qancha - va -zarracha tarqatgan?

A) 2, 4 B) 3, 2 C) 4, 1

D) 2, 3 E) 1, 4

307. Uglerodning qaysi izotopi uning tabiiy birikmalari bo’lgan arxeologik qazilmalarning yoshini aniqlashda ishlatiladi?