GCSE science and chemistry (9-1)- How atoms form ions. science-revision 8:14 5 months ago 71 Скачать Далее
What Are Ions | Properties of Matter | Chemistry | FuseSchool FuseSchool - Global Education 4:45 11 years ago 971 195 Скачать Далее
Ions and ionic bonding explained: from fizzics.org Fizzics Organisation 2:23 3 years ago 147 Скачать Далее
