Match the columns.
Column-A(comman name) Column-B(Group number in the mediak periodic table)
i. Alkali metals a. 18
ii. Alkaline earth metals b. 17
iii. Halogens c. 2
iv. Nobal gas d. 1
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. . i-d, ii-c, iii-b, iv-a
- Alkali metals are found in Group 1 of the periodic table. This group includes elements like lithium (Li), sodium (Na), and potassium (K). Alkali metals are known for their high reactivity, especially with water.
- ii. Alkaline earth metals - c. 2
- Alkaline earth metals are located in Group 2 of the periodic table. This group includes elements such as beryllium (Be), magnesium (Mg), and calcium (Ca). These metals are somewhat less reactive than alkali metals and are typically harder and have higher melting points.
- iii. Halogens - b. 17
- Halogens are in Group 17 of the periodic table. This group contains elements like fluorine (F), chlorine (Cl), and iodine (I). Halogens are highly reactive nonmetals and are known for their ability to form salts when combined with metals.
- iv. Noble gases - a. 18
- Noble gases are found in Group 18 of the periodic table. This group includes elements such as helium (He), neon (Ne), and argon (Ar). Noble gases are characterized by their lack of reactivity due to having a complete outer electron shell.