Respuesta :
Answer: The correct answer is Option 1.
Explanation:
From the given options:
Option 1: Metals
Metals are defined as the elements which loose its electrons in order to attain stability. Most of the periodic table consist of metals. Elements belonging to Group 1 to 13 are considered as metals.
Option 2: Non-metals
Non- metals are defined as the elements which gain electrons in order to attain stability. Elements belonging to Group 14 to 17 are considered as non-metals.
Option 3: Metalloids
Metalloids are defined as the elements which show the property of both metals and non-metals. There are 7 metalloids in the periodic table. they are Born (B), Silicon (Si), Germanium (Ge), Arsenic (As), Antimony (Sb), Tellurium (Te) and Polonium (Po).
Option 4: Noble gases
The elements which belong to Group 18 are considered as noble gases. They are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe) and Radon (Rn).
Hence, elements in Group 2 will be classified as Metals.
Thus, the correct answer is Option 1.
The elements in group 2 are classified as [tex]\boxed{\left( 1 \right){\text{ metals}}}[/tex].
Further Explanation:
The periodic table is a tabular arrangement of elements in increasing order of their atomic numbers in various rows and columns. Horizontal rows are called periods and vertical columns are called groups. There are 18 groups and 7 periods in a periodic table.
Elements are also classified as metals, non-metals, and metalloids in this table. The elements placed at the left side of the table are metals while those placed at the right of the table are non-metals. Metalloids are elements that are placed between metals and non-metals.
(1) Metals
Group 2 is situated at the left region of the periodic table. The elements in group 2 have the general outermost configuration of [tex]n{s^2}[/tex]. These have two valence electrons in them and are highly electropositive in nature. So these two electrons can be easily removed and therefore group 2 elements are metals.
(2) Metalloids
These are placed between metals and non-metals. Groups from 13 to 16 contain metalloids in them. Germanium, boron, arsenic, and antimony are some examples of metalloids. So group 2 elements cannot be metalloids.
(3) Nonmetals
These are located at the extreme right region of the periodic table. Carbon, oxygen, sulfur and bromine are some examples of non-metals. So elements of group 2 cannot be non-metals.
(4) Noble gases
These are the elements of group 18 of the periodic table. Helium, neon, argon, krypton, and xenon are some examples of noble gases. So group 2 elements cannot be noble gases.
Learn more:
- Which ion was formed by providing the second ionization energy? https://brainly.com/question/1398705
- Write a chemical equation representing the first ionization energy for lithium: https://brainly.com/question/5880605
Answer details:
Grade: High School
Subject: Chemistry
Chapter: Periodic classification of elements
Keywords: metals, metalloids, non-metals, noble gases, group 2, periodic table, groups, periods, carbon, neon, germanium, boron, silicon.
