Across
- 3. A type of chemical bond formed when valence electrons are completely transferred (given and taken) between atoms—typically occurring between a Metal and a Non-metal—resulting in oppositely charged ions.
- 5. The electrons located in the outermost energy level (shell) of an atom; these are the only electrons directly involved in chemical bonding and reactivity.
- 7. Elements in the first vertical column of the Periodic Table that possess 1 valence electron and exhibit increasing reactivity as you move down the group.
- 8. The chemical principle stating that atoms are most stable when their outermost energy level is completely full (typically holding 8 valence electrons, except for hydrogen and helium which max out at 2).
- 10. Elements in the far-right group (such as Neon and Argon) that have completely full outer energy levels, making them completely unreactive and stable on their own.
Down
- 1. The condition of an atom having a complete, full outer energy level, making it unreactive on its own.
- 2. An atom or molecule that has gained or lost one or more electrons, acquiring a net electrical charge (e.g., positive metal ions like 〖"Na" 〗^+ and negative non-metal ions like 〖"Cl" 〗^-).
- 4. A type of chemical bond formed when atoms share pairs of valence electrons—typically occurring between Non-metal and Non-metal atoms.
- 6. Elements in Group 17 that possess 7 valence electrons and are highly reactive.
- 9. The tendency of an atom with an incomplete outer energy level to eagerly gain, lose, or share electrons through chemical reactions.