What is the positively-charged particle present in an atom called?

What is the positively-charged core in the centre of an atom called?

The negatively-charged particle present in an atom is called _____

True or False: There is a negatively-charged core in the centre of an atom called the nucleus.

A proton is kept at rest. A positively charged particle is released from rest at a distance d in its field. Consider two experiments, one ini which the charged particle is also a proton and in another, a position. In the same time t , the work done on the two moving charged particles is

A proton is kept at rest. A positively charged particle is released from rest at a distance d in its field. Consider two experiments, one ini which the charged particle is also a proton and in another, a position. In the same time t , the work done on the two moving charged particles is

Positronium is just like a H-atom with the proton replaced by the positively charged anti-particle of the electron (called the positron which is as massive as the electron). What would be the ground state energy of positronium ?

Positronium is just like a H-atom with the proton replaced by the positively charged anti-particle of the electron (called the positron which is as massive as the electron). What would be the ground state energy of positronium ?

A positively charged particle is released from rest in a uniform electric field. The electric potential energy of the charge.

A positively charged particle is released from rest in a uniform electric field. The electric potential energy of the charge.

A positively charged particle is released from rest in a uniform electric field. The electric potential energy of the charge.