what is valence shell
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Answer:
electron in outermost shell
Explanation:
according to 10 th class
an atom is considered to have 4 shells
K L M N
2 8 8 8
examples Na (sodium) atomic number 11
<K>2<L>8<M>1
2+8+1=11
electrons in outermost shell of sodium is 1
its very unstable ready to be cation to complete its octet i.e. last shell making it highly reactive
questions welcomed
Answer: The outermost shell of any atom is called the valence shell and the electrons that reside in the valence shell are called valence electrons. When the valence electrons in any atom gain sufficient energy from some outside force, they can break away from the parent atom and become what are called free electrons.
Explanation: