How to use a balance to find the mass of an object? Explain. Given that fluorine has an atomic number of 9, how are electrons placed into the orbitals? In what sense is the outer electron shell incomplete? An element has 43 protons ...
From being a crucial building block of steel to nourishing plants and helping carry oxygen in your blood — iron is always busy helping sustain life on Earth. Iron is a brittle, hard substance, classified as a metal inGroup 8 on the Periodic Table of the Elements. The most abundant of al...