Since the two atoms have the same number of protons, they both have an atomic number of 4. This means that they are both beryllium atoms, with four protons and four electrons in their neutral state.
The positively charged atom, however, has lost one or more electrons, resulting in an imbalance between its positively charged protons and negatively charged electrons. Therefore, it could be a beryllium ion, specifically a Be+ or Be2+ ion, with three or two electrons, respectively.
On the other hand, the neutral atom has the same number of protons and electrons, so it could be a neutral beryllium atom, with four protons and four electrons in a balanced state.
Both beryllium atoms and beryllium ions have the same number of neutrons, which is determined by their atomic mass number. For simplicity, let's assume that both atoms have the most common isotope of beryllium, which has a mass number of 9. This means that both atoms have five neutrons.
Therefore, the possible number and location of all subatomic particles for the positively charged beryllium ion (Be+) are:
Protons: 4 (located in the nucleus)
Neutrons: 5 (located in the nucleus)
Electrons: 3 (orbiting around the nucleus)
And for the doubly positively charged beryllium ion (Be2+):
Protons: 4 (located in the nucleus)
Neutrons: 5 (located in the nucleus)
Electrons: 2 (orbiting around the nucleus)
And for the neutral beryllium atom:
Protons: 4 (located in the nucleus)
Neutrons: 5 (located in the nucleus)
Electrons: 4 (orbiting around the nucleus)