Will give you have to match the word on the left to the items on the right

fission - splitting/dividing

gamma rays - high energy light

radioactive - release of atomic particles

beta rays - electrons

alpha rays - helium nuclei

fusion - joining together

plasma - ions and free electrons

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

that tool would be a compass