Periodic properties of atoms
Answers Chemistry, 12e (Brown, LeMay, Bursten, Murphy) chapter 7, 8 & 9
Na & K, Mg & Br Zephan and Tae. Alkali Metals Most reactive elements – Ionic in nature (solid or aqueous) – Kept under special conditions to prevent contact.
What are ecosystems? Biotic and abiotic and their interactions in a given place.
