Question

find the neutral atom in the periodic table which has the same no. of electrons as na+ and f-. what is this no.?

Answer 1

o and n_1 is correct answer

Answer 2

Explanation:

When an ion has positive charge then the ion holds less number of electrons as compared to its neutral atom.

Whereas when an ion has negative charge then the ion holds more number of electrons as compared to its neutral atom.

It is known that atomic number of sodium (Na) is 11. Therefore, number of electrons in $Na^{+}$ is 11 - 1 = 10 electrons.

Also, the atomic number of fluorine is 9. Therefore, number of electrons in $F^{-}$ ion is 9 + 1 = 10.

Therefore, neutral atom in the periodic table which has 10 electrons is neon (Ne).