Answer:
N³⁻ contain seven protons and ten electrons.
Explanation:
Nitrogen have seven protons and seven electrons. When it an atom lose or gain the electrons ions are formed.
Cation:
When an atom lose the electrons the formed is called cation.
e.g Na⁺ sodium lose one electron and form cation.
Anion:
when an atom gain the electrons the ions formed is called anion.
e.g N³⁻
Nitrogen consist of seven electrons and seven protons. when it gain electrons anions are formed. In given symbol nitrogen consist of 3- charge which means nitrogen gain three more electrons so total electrons will be ten.
Atoms of the same chemical element do not always have the same mass because, although the number of protons in the nucleus is the same for all atoms of the same element, the number of neutrons is not. Most elements as they occur naturally on earth are mixtures of several isotopes
hope this will help
Answer:
Surfactant. Surfactant, also called surface-active agent, substance such as a detergent that, when added to a liquid, reduces its surface tension, thereby increasing its spreading and wetting properties
Explanation:
