The mass number is the sum of the number of protons and number of neutrons the atom has.
So, we can write the equation as:
x + 20 = 40
x = 20 neutrons.
Answer:
Nucleic acids are the most important macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Explanation:
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Hi , the answer is December 31st around 10;30pm.
B. Mid ocean ridges always lie between continents.
A. Ribosomes
Ribosomes bind mRNA and translate into a protein. They reside in the cytoplasm and bind to the endoplasmic reticulum.
