Atoms contain with a positive charge, with a neutral charge, and with a negative charge. *

Protons with a positive charge

Neutrons with a neutral charge

Electrons with a negative charge

Explanation:

Atoms consist of 3 tiny particles: protons, neutrons, and electrons. Protons and neutrons are in the centre (nucleus) of the atom, the electrons are found around the nucleus.

The charges on the proton and the electrons are the same size, but opposite. Electrons possess a negative charge, and protons possess a positive charge. Because of this, they attract one another (opposites attract) and this is what holds the atom together. The neutrons have no charge, i.e. they are neutral

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.