A scientist is measuring the mass of two boron atoms. One atom has a mass of 10 units. The other atom has a mass of 11 units.
This is a model of a boron atom with a mass of 11 units.
Which subatomic particle needs to be removed from the model to represent a boron atom with a mass of 10 units?
A.particle N
B.particle L
C.particle P
D.particle M
Based on the given information, the correct answer is C. particle P.
Particle P represents a proton, which has a positive charge and contributes to the mass of an atom. If a boron atom with a mass of 11 units needs to be converted to a boron atom with a mass of 10 units, one proton would need to be removed. This would decrease the mass of the atom while maintaining its identity as a boron atom.