science
Grade-9
Easy
Question
The outermost shell of an atom or an element is called:
- Group number
- Valency
- Valence electrons
- Electronic configuration
Hint:
The outermost shell of an electron is the valence shell.
The correct answer is: Electronic configuration
- The reactivity of a particular element is determined by the number of electrons in the outermost shell.
- An electron shell is the outer region of an atom around the atomic nucleus.
- The outermost shell of an element is known as the valence shell which is also called as K shell.
- The electrons found in the valence shell are known as valence electrons.
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