11. Which of the following is true about nitrogen-14 and nitrogen-16? A. They are isotopes of the same atom.
B. They are the same except that carbon-14 has 2 extra electrons.
C. They are completely different atoms.
D. They are the exact same atom.

The answer is option A.

They are isotopes of the same atom.

Hope this helps you

elements make up everything, and they combine to make compounds.

the answer is c

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.