| VI. Write questions to which sentences below are the answers:
1. An Ion is an atom or group of atoms with an electric charge. 2. A normal atom is electrically neutral. 3. A hydrogen atom has one proton and one electron. 4. The electrons that rotate around the nuclei form an interesting pattern. 5. When an electron leaves an atom, it destroys electrical balance. 6. The atom becomes an ion.
VII. Complete these sentences:
1. An Ion is an atom or group of atoms …. 2. In other words, there are as many protons in the nucleus as there are electrons which …. 3. A hydrogen atom has …. 4. The electrons that rotate around …. 5. Nitrogen has seven protons … 6. Oxygen has eight protons and …
7. When an electron leaves an atom, it …. 8 The atom becomes …. 9. To repeat – a normal atom has ….
Достарыңызбен бөлісу: | 
