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.
Quick Answer. An atom with no charge becomes positively charged when it loses an electron. When this happens, it is called a positive ion. If the atom gains an electron, the atom becomes a negative ion. In either case, the number of protons in the atomâs nucleus does not change. More than one electron can be removed from an atom to give it a positive charge of +2, +3 or more.