Other atoms are also named based on the number of protons they carry.Notice in the diagram that eight different isotopes of Carbon are illustrated.Three of the Carbon isotopes (C) are found in nature.
It is called "Carbon-12," which is abbreviated "C." The fact that the atom has six protons is what makes it carbon.
Most nitrogen atoms have seven protons and seven neutrons, so their atomic mass is 7 + 7 = 14.
The fact that it has seven protons is what makes it nitrogen.
In this section, you will read three passages and answer reading comprehension questions about each passage.
Most questions are worth one point, but the last question in each set is worth more than one point.
The directions indicate how many points you may receive.You have 60 minutes to read all of the passages and answer the questions.Some passages include a word or phrase followed by an asterisk (*).Go to the bottom of the page to see a definition or an explanation of these words or phrases.To understand this process we must first understand a little bit about the atoms themselves and how they get their names.Most carbon atoms have six positively charged protons and six uncharged neutrons.