Name the elements in Period 2 that are metals.
The correct answer and explanation is :
The elements in Period 2 that are metals are Lithium (Li) and Beryllium (Be).
Explanation:
The periodic table organizes elements into rows called periods and columns called groups based on their atomic structure and properties. Period 2 is the second row of the periodic table and contains eight elements, ordered by increasing atomic number. These elements are Lithium (Li), Beryllium (Be), Boron (B), Carbon (C), Nitrogen (N), Oxygen (O), Fluorine (F), and Neon (Ne).
Elements are broadly classified into metals, nonmetals, and metalloids. Metals are typically located on the left side of the periodic table and are characterized by properties such as being good conductors of heat and electricity, malleability, ductility, and often having a metallic luster. Nonmetals are usually found on the right side and exhibit properties opposite to metals. Metalloids are located along the “staircase” line dividing metals from nonmetals and possess properties intermediate between the two.
Let’s look at the elements in Period 2 from left to right:
Lithium (Li): Found in Group 1, the alkali metals. All alkali metals are highly reactive metals. Therefore, Lithium is a metal.
Beryllium (Be): Found in Group 2, the alkaline earth metals. All alkaline earth metals are also metals. Therefore, Beryllium is a metal.
Boron (B): Found in Group 13, Boron is located just to the right of the dividing line and is generally classified as a metalloid.
Carbon (C): Found in Group 14, Carbon is a well-known nonmetal.
Nitrogen (N): Found in Group 15, Nitrogen is a nonmetal.
Oxygen (O): Found in Group 16, Oxygen is a nonmetal.
Fluorine (F): Found in Group 17 (halogens), Fluorine is a reactive nonmetal.
Neon (Ne): Found in Group 18 (noble gases), Neon is a nonmetal.
Based on their positions and typical classifications in the periodic table, only the first two elements in Period 2, Lithium and Beryllium, are metals. The remaining elements are classified as a metalloid, nonmetals, and a noble gas (which is a type of nonmetal).