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| Frage | Antworten |
| How do elements form compounds? | Elements react together to form compounds by gaining or losing electrons or by sharing electrons. |
| How do the elements in Group 1 bond with the elements in Group 7? | The elements in Group 1 react with the elements in Group 7. As they, atoms of group 1 elements can each lose one electron to gain the stable electronic structure of a noble gas. This electron can be given to an atom form Group 7, which then also achieves the stable electronic structure of a noble gas. |
| How are ionic compound held together? | Ionic compounds are held together by strong forces of attraction between the oppositely charged ions. |
| Which elements, other than those in Group 1 and 7, form ions? | Besides the element in Groups 1 and 7, other elements that can form ionic compounds include Group 2 and 6. |
| What does the formula of an ionic compound show? | It shows the ratio of ions present in the compound. |
| How are covalent bonds formed? | Covalent bonds are formed when atoms share pairs of electrons. |
| What types of substances have convalent bonds? | Many substances containing covalent bonding consist of simple molecules, but some have giant covalent structures. |
| How are the atoms in metals arranged? | The atoms in metals are closely packed together and arranged in regular layers. |
| How are atoms in metals held together? | We can think of metallic bonding as positively charged metal ions which are held together by electrons from the outermost shell of each metal atom. These delocalised electrons are free to move throughout the giant metallic lattice. |
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