Gdz Po Himii 11 Klass Bazovyj Uroven Proverochnaja Rabota 1gabrieljan -

: When an atom becomes a cation (positive ion), it loses electrons; an anion (negative ion) gains them.

: Electronegativity increases toward Fluorine (up and to the right), while atomic radius increases toward Francium (down and to the left).

: Multiple-choice items focusing on identifying isotopes or determining the number of neutrons/protons.