Question

read the passage and use the diagram to answer the next two questions. the following figure shows the bond formation of sodium chloride which is a compound commonly known as table salt. select the answer that shows the numbers in the correct order to complete the sentence. a sodium atom has valence electron(s) a chlorine atom has valence electron(s) one; seven eleven; seventeen seven; seventeen one; eleven

Explanation:

Valence electrons are the electrons in the outermost shell of an atom. Sodium (Na) has an atomic number of 11. Its electron configuration is \(1s^{2}2s^{2}2p^{6}3s^{1}\), so it has 1 valence electron. Chlorine (Cl) has an atomic number of 17. Its electron configuration is \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{5}\), so it has 7 valence electrons.

Answer:

one; seven