The property of the alkaline earth metals that increases with their atomic number is (a) Ionisation energy (b) Electronegativity The property of the alkaline earth metals that increases with their atomic number is (a) Ionisation energy (b) Electronegativity November 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related