An atom has an atomic mass of 9.01 and an atomic number of 4. Determine the identity of them
The atomic number of an atom is equal to the number of protons in its nucleus. Since the atomic number is 4, this atom has 4 protons.
To determine the identity of the atom, we can refer to the periodic table of elements. With an atomic number of 4, the atom is element number 4 on the periodic table, which is Beryllium (Be).
Therefore, the atom with an atomic number of 4 and an atomic mass of 9.01 is Beryllium.