Using the words glass and grass, students practice using the G-blends at the start of a word. Students have to write a sentence using the word and think of three more words that start with the same blend.
Ions are electrically charged particles. Cations have a positive (+ ) charge. Anions have a negative (-) charge. Ions have a charge because electrons can be transferred. The charge is produced when atoms gain electrons (to form anions) or lose electrons (to form cations). Sodium, Na, is in group 1A. It loses one electron to form the sodium ion, Na1+. The charge is written after the symbol as a superscript.
U just need to remember the overall charge of the polyatomic ion for example no3- that's enough In case of ionic compound For example magnesium ion and nitrate ion Magnesium â¦is 2 positive charge while nitrate ion is 1 negative charge.(in order to achieve octet structure) To form ionic compound for example it should be mg(no3)2 but not mgno3 2 that ...