LIFE SCIENCE

Detailed explanation-1: -The correct answer is Only electrons participate in chemical reactions. Electrons are the negatively charged particles of an atom that are involved in chemical reactions. So, only the outer-shell electrons (valence electrons) have low ionization energy and can participate in chemical reactions.

Detailed explanation-2: -Answer and Explanation: The subatomic particle that participates in chemical bond formation is C. Electrons. These particles are negatively-charged and are found orbiting the nucleus of the atom.

Detailed explanation-3: -Chemical reactions involve breaking chemical bonds between reactant molecules (particles) and forming new bonds between atoms in product particles (molecules).

Detailed explanation-4: -Answer and Explanation: The statement that is not true about subatomic particle is that all electrons and atom contain the same amount of energy.

Detailed explanation-5: -Answer and Explanation: The given statement a. that is “if an atom has an equal number of protons and electrons, it will be charge-neutral” is true because the charge of proton and neutrons are different in sign but it is similar in magnitude.