There were several scientists that discovered that atoms contained electric charges. One of the first to look at their charges more closely was J.J. Thomson.
Atoms contain both positive (protons) and negative (electrons) electric charges. But in the vast majority of atoms these positive and negative electric charges balance, canceling and resulting in zero total electric charge. When electrons detach from atoms we generate electricity. Where there are fewer electrons there is a positive charge. Where there are more electrons there is a negative charge. When two places have different charges we get an electric voltage. When electrons flow from a negatively charged place to a positively charged place we get an electric current.
Ions are atoms that have a postive or negative charge because they have loss or gained negative particles (electons).
A polyatomic ion is a group of atoms with a charge.
Electrically charged atoms are known as ions. Ions occur when an atom looses or gains electrons. A normal atom is neutral, because it has the same number of positive protons and negative neutrons. When electrons are lost or gained, the atom can become positive (a cation) or negative (an anion). When an atom is positeve or negative, it is electrically charged.
DNA has a negative charge because of the phosphate groups in its structure, which carry negative charges due to the presence of oxygen atoms.
Electrons.
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Positive atoms: cations. Negative atoms: anions
Benjamin franklin
Ions are formed when atoms have charges. Cations are species with positive charge. Anions are species with negative charge.
Protons have a positive charge. Electrons have a negative charge. Neutrons possess no charge.
Atoms carry a positive charge on the proton and a negative charge on the electron, usually these cancel out.
Atoms contain both positive (protons) and negative (electrons) electric charges. But in the vast majority of atoms these positive and negative electric charges balance, canceling and resulting in zero total electric charge. When electrons detach from atoms we generate electricity. Where there are fewer electrons there is a positive charge. Where there are more electrons there is a negative charge. When two places have different charges we get an electric voltage. When electrons flow from a negatively charged place to a positively charged place we get an electric current.
Atoms have NO electric charge, only ions have (+ or -)
Nonmetallic atoms have Neutral charge not a Negative charge.
Because the positive charge of the protons in the nucleus is exactly canceled by the negative charge of the electrons in the orbitals around it.
Because the positive charge of the protons in an atom are cancelled out by the negative charges of the electrons in the atom.