Answer
Verified
100.8k+ views
Hint: Metals tend to lose electrons to acquire the configuration of Noble Gas electrons, whereas non-metals tend to acquire electrons to obtain configurations of Noble Gas. The distribution of atom or molecular electrons in atomic or molecular orbitals is coined as the term electronic configuration.
Complete step by step solution: Metallic character refers to the level of reactivity of a metal. Metals, as indicated by their low ionization energies, appear to lose electrons in chemical reactions.
In chemical reactions, nonmetals prefer to gain electrons and have a strong electron appeal inside a product. In the upper-right section of the periodic table, the most volatile nonmetals exist. Due to their lack of reactivity, the noble gases are a special category, so the element fluorine is the most reactive non-metal.
Alkali metals are the most metallic elements. They have one electron in their valence shell. The general outer electronic configuration of alkali metal is $n{{s}^{1}}$.
A. 2, 8, 4
The electron arrangement of the given element is 2, 8, 4. Hence, the element is silicon. And silicon is metalloid. Thus, this option is not correct.
B. 2, 8, 8
The electron arrangement of the given element is 2, 8, 8. Hence, the element is argon. And argon is non-metal. Thus, this option is not correct.
C. 2, 8, 8, 1
The electron arrangement of the given element is 2, 8, 8, 1. Hence, the element is potassium. And potassium is metal as it belongs to the alkali metal family and alkali metals are the most metallic elements. Thus, this option is correct.
D. 2, 8, 8, 7
The electron arrangement of the given element is 2, 8, 8, 7. Hence, the element is manganese. And manganese is a hard metal and is very brittle. Thus, this option is not correct.
Hence, option C is correct.
Note: Always remember, alkali metals are the most metallic elements. They have one electron in their valence shell. A metalloid is an element that has properties that are intermediate between those of metals and nonmetals. Metalloids can also be called semimetals.
Complete step by step solution: Metallic character refers to the level of reactivity of a metal. Metals, as indicated by their low ionization energies, appear to lose electrons in chemical reactions.
In chemical reactions, nonmetals prefer to gain electrons and have a strong electron appeal inside a product. In the upper-right section of the periodic table, the most volatile nonmetals exist. Due to their lack of reactivity, the noble gases are a special category, so the element fluorine is the most reactive non-metal.
Alkali metals are the most metallic elements. They have one electron in their valence shell. The general outer electronic configuration of alkali metal is $n{{s}^{1}}$.
A. 2, 8, 4
The electron arrangement of the given element is 2, 8, 4. Hence, the element is silicon. And silicon is metalloid. Thus, this option is not correct.
B. 2, 8, 8
The electron arrangement of the given element is 2, 8, 8. Hence, the element is argon. And argon is non-metal. Thus, this option is not correct.
C. 2, 8, 8, 1
The electron arrangement of the given element is 2, 8, 8, 1. Hence, the element is potassium. And potassium is metal as it belongs to the alkali metal family and alkali metals are the most metallic elements. Thus, this option is correct.
D. 2, 8, 8, 7
The electron arrangement of the given element is 2, 8, 8, 7. Hence, the element is manganese. And manganese is a hard metal and is very brittle. Thus, this option is not correct.
Hence, option C is correct.
Note: Always remember, alkali metals are the most metallic elements. They have one electron in their valence shell. A metalloid is an element that has properties that are intermediate between those of metals and nonmetals. Metalloids can also be called semimetals.
Recently Updated Pages
Write a composition in approximately 450 500 words class 10 english JEE_Main
Arrange the sentences P Q R between S1 and S5 such class 10 english JEE_Main
Write an article on the need and importance of sports class 10 english JEE_Main
Name the scale on which the destructive energy of an class 11 physics JEE_Main
Choose the exact meaning of the given idiomphrase The class 9 english JEE_Main
Choose the one which best expresses the meaning of class 9 english JEE_Main