What the difference between a sodium atom (Na) and a sodium ion (Nal+)

What shape would a molecule with two bound groups and two lone pairs have?

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

Given the following information: mass of proton = 1.00728 amu mass of neutron = 1.00866 amu mass of electron = 5.486 × 10^-4 amu speed of light = 2.9979 × 10^8 m/s calculate the nuclear binding energy (absolute value) of 3li^6. which has an atomic mass of 6.015126 amu. j/mol.