The electron and proton are attracted to each other. This attraction holds the atom together ... When the plastic is moved near the desk, electrons in the desk are repelled by the negatively charged ...

A nucleus's positive charge usually repels protons' positive charges, meaning that halos made of protons are even rarer.

The relative charge of a nucleus is the same as its ... The atom is neutral as it has two positive protons and two negative electrons. A helium atom that has lost or gained an electron is an ...

As they studied atomic disintegration, they kept seeing that the atomic number (number of protons in the nucleus, equivalent to the positive charge of the atom) was less than the atomic mass ...

The atom's nucleus and electrons are held together by the electromagnetic force—the positive charges of the protons balance the negative charges of the electrons. Neutrons have no charge.

For example, the atomic number of chlorine is 17. Every chlorine atom has 17 protons and 17 electrons. It has 17 positive charges and 17 negative charges, meaning that it is neutral overall.