Question

if lithium has an atomic number of 3 and mass of 7...
how may protons electrons neurons does lithium have

Answer 1

Answer:

Lithium is an alkali metal with the atomic number = 3 and an atomic mass of 6.941 g/mol. This means that lithium has 3 protons, 3 electrons and 4 neutrons (6.941 - 3 = ~4)

Atomic Mass: 6.941 g/mol

Density: 0.534 g/cm3

Atomic Radius: 152 pm

Heat of fusion: 3.00 kJ/mol