Free interactive and download to print GCSE Chemistry flashcards to help prepare for your GCSE exams. Revise topics such as atoms, elements and compounds, mixtures, atomic structure, Mendeleev's ...

Radioactive decay is a fundamental process in nature by which an unstable atomic nucleus loses energy by radiation. Studying ...

Neptunium, an actinide metal, sits next to uranium in the periodic table with an atomic number of 93; ... Probing neptunium's atomic structure with laser spectroscopy. Your friend's email.