Question

which part of an atom participates in the reaction shown below? u235 + n → xe134 + sr100 + 2n a. nuclei b. protons c. valence electrons d. inner - shell electrons

Explanation:

The given reaction is a nuclear fission reaction where a uranium - 235 nucleus absorbs a neutron and splits into smaller nuclei (xenon - 134 and strontium - 140) along with neutrons. In nuclear reactions, the nuclei of atoms participate. Protons are part of the nucleus but the whole nucleus is involved. Valence electrons and inner - shell electrons are involved in chemical reactions, not nuclear reactions.

Answer:

A. Nuclei