An atom is electrically neutral. Justify?
Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged). If an atom gains or loses one or more electrons, it becomes an ion. If it gains one or more electrons, it now carries a net negative charge, and is thus "anionic." If, on the other hand, it loses one or more electrons, it now carries a net positive charge and is "cationic."
This question is part of UPSC exam. View all Class 9 courses
An atom is electrically neutral. Justify?
Electrically Neutral Atom
An atom is electrically neutral because it contains equal numbers of positively charged protons in the nucleus and negatively charged electrons surrounding the nucleus.
Protons
- Protons are positively charged particles found in the nucleus of an atom.
- The number of protons in an atom determines its atomic number and defines the element.
Electrons
- Electrons are negatively charged particles that orbit the nucleus of an atom in specific energy levels.
- The number of electrons in an atom is equal to the number of protons, maintaining the atom's overall neutrality.
Neutrons
- Neutrons are neutral particles found in the nucleus of an atom.
- They do not contribute to the overall charge of the atom.
Charge Balance
- The positive charge of protons is balanced by the negative charge of electrons in an atom.
- This balance results in an electrically neutral atom, where the overall charge is zero.
Stability
- An electrically neutral atom is stable because the positive and negative charges cancel each other out, preventing any significant attraction or repulsion between atoms.
In conclusion, an atom is electrically neutral due to the equal number of protons and electrons, which balance out the positive and negative charges within the atom. This balance of charges maintains the stability of the atom and allows it to interact with other atoms in chemical reactions.
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.