Question

1. explain why group 1 elements often form compounds with elements in group 17.
2. compare and contrast hydrogen and francium.
3. how do transition metals differ from metals in groups 1 and 2? how are they different from all othr elements?

Answer 1

1. Because alkali metals are so reactive, they are found in nature only in combination with other elements. They often combine with group 17 elements, which are very “eager” to gain an electron.

2.What are the similarities of hydrogen and sodium? Hydrogen and sodium are both located in period one (the first row of the periodic table). This means they both have one electron in their outer shell in their atomic form and are relatively small in size.

3.The transition metals are more electronegative than the main group metals, for example, and are therefore more likely to form covalent compounds. ... A third difference between main group and transition-metal ions is the ease with which they form stable compounds with neutral molecules, such as water or ammonia.