Which particles that make up an atom are involved in nuclear reactions?
protons only
protons and neutrons
electrons only
electrons and neutrons

Pay attention to the word "nuclear" in nuclear reactions. This word tells us that the nucleus of the atom is affected and involved in nuclear reactions.

The nucleus consists of two different particles, protons and neutrons. Thus, protons and neutrons (the particles of the nucleus) are involved in a nuclear reaction.

Your answer is choice B. Let me know if you need any clarifications, thanks!

~ Padoru

the answer is a. co2, this would be colder than the : )

explanation:

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms