Question

the subatomic particle without an electric charge is called a(n) ____. neutron proton electron nucleus 13. choose the best answer. this law was proposed by joseph proust and is known as the law of constant composition. law of conservation of mass law of reciprocal proportions

Explanation:

1. Sub - atomic particles: Protons have a positive charge, electrons have a negative charge, and neutrons have no charge. The nucleus is not a sub - atomic particle but a part of an atom containing protons and neutrons.
2. Chemical laws: The law of conservation of mass was not proposed by Joseph Proust. The law of constant composition was proposed by Joseph Proust, while the law of reciprocal proportions is a different chemical law.

Answer:

1. A. neutron
2. No correct option provided (should be law of constant composition which is not listed as an option here)