Asap!
when a radioactive isotope releases an alpha particle, the atomic number of the atom is
a
decreased by two.

b
decreased by four.

c
increased by two.

d
increased by four.

☆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

Answerhave membrane-bound organelles;