Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


An atom or a group of atoms which carries positive or negative charge is called an ION
The ions containing positive charge is called cation and having negative charge is called anion
divalent cation - Mg^2+(magnesium)
divalent anion - O^2-(oxide)
0 0 0
An ion is a chemical species with a net electrical charge formed when neutral atom or group of atoms accepts or denotes one more electrons.Ions are of 2 types-cations & anions.Cations are formed when neutral atom loses one or more electrons.It has less electrons than neutral atom & so is positively charged.Eg.Sodium atom(Na) on losing an electron forms sodium cation,denoted by Na+,calcium atom on losing 2 electrons forms calcium ion,denoted by Ca2+.Similarly,anions are formed when neutral atom gains one or more electrons.It has more electrons than the neutral atom & is so negatively charged.Chlorine forms a -ve ion,Cl-(anion) by accepting one electron.
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts