What neutral atom has the same number of electrons as Sc3+
Sc is element #21. It has 21 electrons. Take 3 of those away and you are left with 21-3 = 18. What element is #18?
To determine the neutral atom with the same number of electrons as Sc3+, you need to know the electronic configuration of the Sc3+ ion.
The 3+ charge on the ion indicates that it has lost 3 electrons from its neutral state.
The atomic number of Scandium (Sc) is 21, which means its neutral state has 21 electrons.
To find the electronic configuration of Scandium (Sc), you can use the periodic table:
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^1
To form the Sc3+ ion, three electrons are removed from the 4s and 3d orbitals.
Thus, the electronic configuration of Sc3+ is:
1s^2 2s^2 2p^6 3s^2 3p^6 3d^0
To find the neutral atom with the same number of electrons, you simply add back the 3 electrons that were removed.
The neutral atom with the same number of electrons as Sc3+ is:
1s^2 2s^2 2p^6 3s^2 3p^6 3d^3
This corresponds to the element Vanadium (V), which has an atomic number of 23.
To determine the neutral atom that has the same number of electrons as Sc3+, we first need to determine the number of electrons in Sc3+.
The 3+ charge on the Sc3+ ion indicates that it has three more protons than electrons. This means that it has lost three electrons to achieve a +3 charge.
To find the atomic number of the neutral atom that has the same number of electrons, we can subtract the charge from the atomic number of the Scandium (Sc) atom, which is 21.
Atomic number(neutral atom) = Atomic number(Sc3+) - charge
Atomic number(neutral atom) = 21 - 3
Atomic number(neutral atom) = 18
The neutral atom that has the same number of electrons as Sc3+ is Argon (Ar). Argon has an atomic number of 18 and thus has 18 electrons, which matches the number of electrons in Sc3+.