The three main types of RNA are , , and .

There are three main types of RNA: messenger RNA, ribosomal RNA, and transfer RNA.

Explanation:

Messenger RNA (mRNA), Ribosomal RNA (rRNA), and Transfer RNA (tRNA).

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;