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How many electrons are in the outermost energy level of an electrically neutral atom of aluminum?
Wiki User
∙ 9y ago
Aluminium has a Mass number of 27, and an atomic number of 13, as shown below.
27
Al
13
This means there are 13 electrons in one aluminum atom.
Using Bohrs law, it would read like this;
1s 2s 2p 3s 3p
2 2 6 +2 +1 (=13)
As the outer orbits of the 3rd shell (i.e. 3s and 3p) are not very full, the last (positive) 3 electrons are attracted to elements that require electrons to fill their shells.
For example, Chlorine is one electron short of a full second shell, with a mass number of 35 and an atomic number of 17. So it reads as follows;
35
Cl = 1s 2s 2p 3s 3p
17 2 2 6 2 5
(NB. orbit 3p of the 3rd electron shell is 5, and one short of a full shell, ie. -1)
So if Aluminium has 3+, and Chlorine has 1-, then 3 Chorine atoms can be attracted to Aluminium to form Aluminium Choride. Or;
AlCl
3
I hope this helps someone. =) :0
Wiki User
∙ 12y ago
Wiki User
∙ 8y agoThe outer shell has 3 electrons.
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How many protons and electrons are in Aluminum3?
Aluminum's, or Al's, atomic number is 13. Therefore, an electrically neutral aluminum atom would have 13 protons and 13 electrons. However, Al3+ has 3 less electrons than neutral aluminum, an thus only has 10 electrons.
What is an example of an electrically neutral atom?
An electrically neutral atom is one that has an equal number of protons and electrons.
Why is an atom electrically neutral?
An atom has the same number of positive protons and negative electrons so the charges balance out to zero
How many protons an electrons are in aluminum?
There are 13 protons in the element aluminum. Also, there will be 13 electrons in a neutral atom of this poor metal. Atoms of aluminum that are involved in chemical bonds will have 10, 11 or 12 electrons, depending on the bond.
Do valence electron equal the number of protons?
The number of electrons usually does not equal the number of protons. Valence means outermost. In an electrically neutral atom (which in Gen Chem is the only atoms you will be dealing with) the number of outermost electrons usually does not equal the number of protons. Chlorine has 7 valence electrons but it has 17 protons and if it is electrically neutral (which in gen chem it almost always is) it has 17 electrons. Gen Chem 1: it has 2 electrons in the first shell then it has 8 electrons in the second shell then it has 7 electrons in the outermost shell Gen Chem 2: it has 2 electrons in the 1s orbital then it has 2 electrons in the 2s orbital then it has 6 electrons in the 2p orbital then it has 2 electrons in the 3s orbital then it has 5 electrons in the 3p orbital
A neutral atom of aluminum has 14 neutrons and 13 protons. How many electrons does this aluminum atom have?
This aluminum atom will have 13 electrons when it is neutral. Recall, however, that aluminum wants to loan out electrons in chemical bonds, and the bonded atoms of aluminum can have 10, 11 or 12 electrons, depending on the bond.
How many electrons does silver have when it is electrically neutral?
When it is electrically neutral, it has 47 electrons.
How many protons and electrons are in Aluminum3?
Aluminum's, or Al's, atomic number is 13. Therefore, an electrically neutral aluminum atom would have 13 protons and 13 electrons. However, Al3+ has 3 less electrons than neutral aluminum, an thus only has 10 electrons.
How many electrons are found in the outermost shell of aliminum?
Aluminum has an atomic number of 13. Thus, neutral aluminum has 13 protons and 13 electrons. Therefore, its electron configuration is 1s2 2s2 2p6 3s2 3p1. We can see that 3 is the outermost shell and that there are 3 electrons found there.
Is a aluminum an isotope ion or neutral atom?
An alumimium atom is electrically neutral and it is an isotope of aluminum.
What is an example of an electrically neutral atom?
An electrically neutral atom is one that has an equal number of protons and electrons.
Why atom are electrically neutral?
because the electrons and protons are equal.
Why is an atom electrically neutral?
An atom has the same number of positive protons and negative electrons so the charges balance out to zero
How many protons an electrons are in aluminum?
There are 13 protons in the element aluminum. Also, there will be 13 electrons in a neutral atom of this poor metal. Atoms of aluminum that are involved in chemical bonds will have 10, 11 or 12 electrons, depending on the bond.
How do you calculate number of electrons of a given element?
You can only be sure of the number of electrons if the element is electrically neutral. If an element is electrically neutral, then the number of electrons is the same as the number of protons which is the atomic number of the element. For instance an electrically neutral atom of carbon, there are 6 electrons because there are 6 protons in a carbon atom.
Do valence electron equal the number of protons?
The number of electrons usually does not equal the number of protons. Valence means outermost. In an electrically neutral atom (which in Gen Chem is the only atoms you will be dealing with) the number of outermost electrons usually does not equal the number of protons. Chlorine has 7 valence electrons but it has 17 protons and if it is electrically neutral (which in gen chem it almost always is) it has 17 electrons. Gen Chem 1: it has 2 electrons in the first shell then it has 8 electrons in the second shell then it has 7 electrons in the outermost shell Gen Chem 2: it has 2 electrons in the 1s orbital then it has 2 electrons in the 2s orbital then it has 6 electrons in the 2p orbital then it has 2 electrons in the 3s orbital then it has 5 electrons in the 3p orbital
Why is uranium electrically neutral?
Any atom is neutral in the normal state.After loss or gain of electrons an atom become electrically charged.
