Problem: How many valence electrons does an atom of Al possessA) 1B) 2C) 5D) 3E) 8

FREE Expert Solution

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.

95% (135 ratings)
View Complete Written Solution
Problem Details

How many valence electrons does an atom of Al possess

A) 1

B) 2

C) 5

D) 3

E) 8

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.