Table of Contents
What is the outer shell of aluminum?
3 valence electrons
Aluminum atoms contain 13 electrons and 13 protons. There are 3 valence electrons in the outer shell. In standard conditions aluminum is a fairly soft, strong, and lightweight metal. Its color is silvery-gray.
How many shell does aluminum have?
List of elements with electrons per shell
| Z | Element | No. of electrons/shell |
|---|---|---|
| 10 | Neon | 2, 8 |
| 11 | Sodium | 2, 8, 1 |
| 12 | Magnesium | 2, 8, 2 |
| 13 | Aluminium | 2, 8, 3 |
Do metals have a full shell?
The reactions of elements are related to the number of electrons in their outer shells: Atoms of metal elements give away electrons in their reactions to form positive ions. The ions formed have a full outer electron shell, so are very stable.
How many outer shell electrons does aluminum have?
That means there are 13 electrons in a aluminum atom. Looking at the picture, you can see there are two electrons in shell one, eight in shell two, and three in shell three.
What is the classification of aluminum?
post-transition metal
Aluminum is a chemical element with symbol Al and atomic number 13. Classified as a post-transition metal, Aluminum is a solid at room temperature.
How many electrons does aluminum have in its outermost electron shell?
Aluminium has 3 valence electrons. Valence electrons are located in the outermost shell of an element. On the periodic table, the group number of an…
What is a full shell?
A full valence shell is the most stable electron configuration. Elements in other groups have partially-filled valence shells and gain or lose electrons to achieve a stable electron configuration. This means that they can achieve a stable configuration and a filled outer shell by donating or losing an electron.
Which group number is aluminum in?
Group 13
Fact box
| Group | 13 | Melting point |
|---|---|---|
| Period | 3 | Boiling point |
| Block | p | Density (g cm−3) |
| Atomic number | 13 | Relative atomic mass |
| State at 20°C | Solid | Key isotopes |
Why do elements want a full outer shell?
Atoms want a full outer shell because it completes all the gaps in the outside. With no gaps, other electrons don’t want to fit into those spaces. For example, a noble gas like Neon has a full outer shell. It doesn’t react with other chemicals because the electrons from other chemicals can’t fall in anywhere.
How many levels does aluminum have?
So… for the element of ALUMINUM, you already know that the atomic number tells you the number of electrons. That means there are 13 electrons in a aluminum atom. Looking at the picture, you can see there are two electrons in shell one, eight in shell two, and three in shell three.