Because they want to.
Positive ions
Atoms gain electrons to form negatively charged anions. Atoms lose electrons to form positively charged cations.
Metals tend to form positive ions also known as cations.
Arsenic atoms are neutral and they form ions with valency of three.
Yes, only if there are both ions with positive charges and ions with negative charges among the ionized atoms.
yes positive ions are faster then negative ions
Negative ions form when atoms GAIN valence electrons.
Yes, if they are ions
They can do both to form ions. An ion simply means that there is an uneven distribution of charge, so it can be positive or negative.
Negative ions are formed when atoms accept electrons.
Sin uranium is a metal it will form negative ions.
Metals form positive ions and form ionic compounds with negative ions.