tell me the answer fast from the image attached
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1
Answer:
Valence electrons are the outermost electrons, and are the ones involved in bonding. Sodium has 11 electrons: its atomic number is 11, so it has 11 protons; atoms are neutral, so this means sodium also has 11 electrons.
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0
Answer:
Explanation:
11
Out of which one is valence
so answer 10
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