Unit 1 Summative Assessment

3. If there are two electrons in an orbital, they must have opposite (paired) spins.
4. Tendency of an atom to attract electrons to itself when it combines with another element.
8. Neutrally charged subatomic particle.
9. Positively charged subatomic particle. Contained inside the nucleus.
10. Absorbed when an electron moves from its ground state to its excited state.
13. Atomic Mass Number - Atomic Number
15. Negatively charged Ions.
16. Principal energy levels are broken down into these...
18. A shorthand method of writing the location of electrons by sublevels.
22. Energy given off in the form of light by an excited electron.

1. the most probable location for finding an electron.
2. The center of an atom. Contains the protons and neutrons.Has an overall positive charge.
3. The possible locations around an atom where electrons having specific energy values (quantum number) may be found. Divided into sublevels s, p, d, and f.
5. represent the number of valence electrons.
6. Tendency of an atom to attract electrons to itself when it combines with another element.
7. Atoms of the same element which have a different Mass Number due to a differing number of neutrons.
11. Depends on the number of energy levels and the overall charge of the nucleus .
12. Atoms or groups of atoms with a charge.
14. Horizontal row on the periodic table.
17. When filling sublevels other than s, electrons are placed in individual orbitals before they are paired up.
18. Negatively charged subatomic particles.
19. Positively Charged Ions.
20. Identifies an element. The number of protons.
21. Vertical Column on the periodic table.