Question

A chemical species that contains 10 protons and 10 electrons can be

• A. 1 only
• B. 2 only
• C. 1 & 2
• D. 3 & 4

Answer 1

The correct option is A

1 only

The explanation for the correct option

(A) 1 only, An atom

• An atom is the smallest particle, which contains protons, neutrons, and electrons.
• The number of protons is equal to the number of electrons, and the number of neutrons may vary.
• Here an equal number of protons and electrons are given so it is an atom

The explanation for the incorrect option

(B) A molecule: An entity formed by a combination of the same or different atoms, that is the fundamental part of a chemical compound, and that can take part in a chemical reaction, is called a molecule.

(C) An Anion: A negatively charged ion formed by gaining electrons from others.

(D) A Cation: A positively charged ion formed by giving electrons to others

Thus option A 1 only, Atom is the chemical species containing 10 electrons and 10 protons