To determine the number of valence electrons in aluminum (Al) atom, let’s first write its electron configuration.
Ground-state means that aluminum is in its lowest energy form (not in excited state). Carbon also has no charge (neutral element) which means that no electrons are removed or added in the atom.
Neutral element: Atomic number = # protons = # of electrons
s orbital → can hold a maximum of 2 electrons
p orbitals → can hold a maximum of 6 electrons
d orbitals → can hold a maximum of 10 electrons
f orbitals → can hold a maximum of 14 electrons
From the periodic table, we can see that Al is in Period 3, Group 3A, and p-block.
How many valence electrons does an atom of Al possess
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Valence Electrons of Elements concept. You can view video lessons to learn Valence Electrons of Elements. Or if you need more Valence Electrons of Elements practice, you can also practice Valence Electrons of Elements practice problems.