Question

write the chemical symbols for three different atoms or atomic anions with 10 electrons.

Explanation:

Atoms or atomic anions with 10 electrons include neutral neon (Ne, atomic number 10, so 10 electrons) and anions formed by nonmetals gaining electrons to reach 10 electrons: oxide ion (O²⁻, O has 8 electrons, gains 2 to get 10) and fluoride ion (F⁻, F has 9 electrons, gains 1 to get 10). These are common examples.

Answer:

Ne, O²⁻, F⁻