Under what circumstances does your atom have a negative charge
No. Not under "all or any circumstances."
A regular helium atom (He) has no ionic charge. The element in its standard form as it appears on the period table and in our everyday environment has two protons and two electrons. The positive charge of the protons cancel out the negative charge of the electrons, and so there is no charge left. Furthermore, helium is a noble gas, a family of elements which are extremely stable and will not react with anything under normal circumstances. If, however, an atom of helium where ionized in a lab, and stripped of its electrons, it would have a charge of plus two.
what changes the charge of the atom
Under normal circumstances the Sony VGN-CS260J/R VAIO 14.1 in. 2 GHz Intel Core 2 Duo T6400 Laptop's battery will last about 5 hours on one charge.
A neutral atom will have a charge of ZERO
Yes, an atom can have charge. Atoms consist of protons, which have a positive charge, neutrons, which have no charge, and electrons, which have a negative charge. The overall charge of an atom depends on the balance of these particles.
An atom with positive charge is cation.An atom with negative charge is anion.
An atom with an electrical charge is called an ion.
When an atom has an electric charge it is called an ion.
An ion is an atom with a positive or negative charge.
This is an oddly stated question but I would assume you are talking about elements such as neon, argon, xenon, krypton, i.e. noble gases which are monoatomic elements. They are inert gases that, under ordinary circumstances, do not react with other elements to form compounds.
The charge of electrons in an atom is negative, with a magnitude of -1. This negative charge is equal in magnitude but opposite in sign to the positive charge of protons in the nucleus, which helps maintain the overall neutrality of the atom.