What is the atomic mass of an element that has 33 protons and 42 neutrons

Flyxu7jkopvf7

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts

Answer(28.02g/mol);