Question

an atom with 11 protons and 12 neutron will have valence electron​

Answer 1

Answer: This may help you

Explanation:

The electrons in the outermost shell of an atom are called valence electrons. The valence electrons have great significance in determining the chemical properties of an atom. Elements with the same number of valence electron have the same chemical properties. Example : Given that a sodium atom has 11 protons 12 neutrons.

Answer 2

Answer:

no. of protons = no. of electrons

electrons = 11

electronic configuration = K L M

2 8 1

valence electrons are no. of electrons in outermost shell. therefore answer is 1

Explanation:

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