Which particles make up the nucleus of an atom? protons and electrons electrons and neutrons neutrons and protons protons, neutrons, and electrons

Nickel crystallizes in the face-centered cubic (fcc) lattice. the density of the metal is 8902 kg/m3. calculate the radius of a nickel atom.

Why are pipes bursting in the in extremely cold weather?

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.