BTEC Applied Science Periodic Table Questions With All Correct Answers 2024.

Ion - Answer another name for a charged particle (when an atom loses or gains electrons) Ionic Bond - Answer The strong electrostatic attraction between oppositely charged ions (positive ion and negative ion) Covalent Bond - Answer The strong electrostatic attraction between positive nucleii and the shared pair of electrons Metallic Bond - Answer The strong electrostatic attraction between positive metal ions and the sea of free electrons Molecule - Answer atoms joined by covalent bonds Free (delocalised) electrons - Answer electrons that have been lost from a metal atom and do not get transferred to another atom, they are free to move throughout the whole structure and carry electrical charge Positive ion - Answer Created when a metal atom loses an electron - also known as a cation MgCl2 (Mg2+ Cl- Cl-) - Answer Chemical formula for magnesium chloride Na2O (Na+ Na+ O2-) - Answer Chemical formula for sodium oxide Dot and cross diagram for calcium chloride - Answer Dot and cross diagram for carbon dioxide - Answer