Question

1. choose the best answer.

a(n)_____electron is an electron that occupies the outermost energy level in an atom.
valence
nuclei
outer
inner

1. choose the best answer.

regions in an atom where you are most likely to find an electron are called_____.
ladders
orbitals
positions
nuclei

Explanation:

1. Valence electrons are defined as electrons in the outermost energy level of an atom. Nuclei refer to the center of an atom (plural of nucleus). "Outer" is too general compared to the specific term "valence". "Inner" refers to electrons in lower - energy levels.
2. Orbitals are regions in an atom where there is a high probability of finding an electron. Ladders is an incorrect term in this context. Positions is too vague. Nuclei are the central part of the atom, not regions for electron location.

Answer:

1. A. valence
2. B. orbitals