particle A has a mass of 2 and a charge of -1. particle B has a mass of 2 and a charge of +1. are particle A and particle B necessarily antiparticles? explain your answer

No. The could be positive and negative ions of the same atom, or D+ and (H2)-

To determine if particle A and particle B are necessarily antiparticles, we need to understand the concept of antiparticles and compare the properties of both particles.

Antiparticles are particles that have the same mass as their corresponding particles but opposite charge. When an antiparticle and its corresponding particle collide, they can annihilate each other, releasing energy.

In this case, particle A and particle B have the same mass, which is 2. However, their charges are opposite, with particle A having a charge of -1 and particle B having a charge of +1.

Based on the concept of antiparticles, particle A and particle B are considered to be antiparticles since they have the same mass but opposite charges. The opposite charges indicate that they belong to opposite charge conjugation classes, which is a characteristic of antiparticles.

To reach this conclusion, you need to know the definition of antiparticles and compare the masses and charges of both particles.