Question

16. In which of these cases do we have enough information to say that the atom is electrically neutral? A. The atom has 15 neutrons and 15 electrons. B. The atom has 4 neutrons and 4 protons. C. The atom has 19 electrons and 19 neutrons. D. The atom has 7 protons and 7 electrons.

Answer 1

Answer: Option (D) is the correct answer.

Explanation:

An atom will be electrically neutral when the number of protons equal the number of electrons.

For example, atomic number of fluorine is 9 this means that there are 9 protons in a fluorine atom. Also, there are 9 electrons in fluorine atom. So, fluorine will be neutral.

Thus, we can conclude that out of the given cases we can say that the atom has 7 protons and 7 electrons have enough information to say that the atom is electrically neutral.

Answer 2

It's B the atom has 4 neutrons and 4 protons because atom can be completed through the existence of neutron and proton which stay inside of the neuclues of atom