The total positive charge on all the atoms of an element are the same because the number of protons determine the identity of the element.
What is an atomic model?
An atomic model is a representation of the structure of the atoms of elements.
The negatively charged particles in the figure are the electrons while the positively charged particles are the protons. In the second image, the large grey dot at the center is the nucleus while the smaller grey dots around the ellipses are the electrons.
The total positive charge on all the atoms of an element are the same because the number of protons determine the identity of the element.
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