Question

1. match the elements with the descriptions. these light elements react strongly to any other element they come in contact with and explode. found in the second column, these elements often join with oxygen and create the bright colors of fireworks. fluorine, chlorine, bromine, and iodine combine with other elements to form salts. these nonmetals do not normally combine with other elements. irène joliot - curie and her husband earned a nobel prize for the creation of atoms to treat cancer. these elements can carry electricity under special conditions and are useful in electronic devices. the largest group on the periodic table includes some radioactive elements.

Explanation:

1. Alkali metals are very reactive and can explode when reacting with other elements.
2. Alkaline - earth metals in the second column of the periodic table react with oxygen to produce colors in fireworks.
3. Halogens (fluorine, chlorine, bromine, iodine) form salts when combining with other elements.
4. Noble gases are non - metals that are inert and do not normally combine with other elements.
5. Irene Joliot - Curie and her husband worked on radioactive isotopes for cancer treatment.
6. Semiconductors can conduct electricity under special conditions and are used in electronics.
7. The transition metals are the largest group on the periodic table and some are radioactive.

Answer:

1. Alkali metals
2. Alkaline - earth metals
3. Halogens
4. Noble gases
5. Radioactive isotopes
6. Semiconductors
7. Transition metals