Which is defined as the energy required to remove an electron from an atom of an element? A electronegativity
B ionization energy
C ionic radius
D law of octaves

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

Elements that do not have full outer electron shells will donate, share, or take electrons from other atoms. choose the items that have the correct binary ionic formula.

Connect the whole numbers on the periodic table to indicate what they represent?