0
It is sodium Chlorine is the first element that needs a third shell.
What else can I help you with?
What is the first element that needs the third shell?
Sodium, assuming "first" means "first in the periodic table", i.e. the one with fewest electrons per atom. The first shell holds 2 electrons, and the second holds another 8. So the element with atomic number 11 is the first one to need the third shell, and that's sodium.
What element has the configuration of 1s22s22p63s23p64s1?
I count 19 electrons. That is potassium. You need to learn how to read a periodic table.
16 electrons need how many shells?
16 electrons would fill up the first four shells in an atom: 2 electrons in the first shell, 8 electrons in the second shell, 4 electrons in the third shell, and 2 electrons in the fourth shell.
How many electrons are required to fill the first shell?
The number of electrons in a shell is 2n2, where n=shell number. So for the first shell, there is a maximum of 2 electrons.
How many shells do 20 electrons need?
20 electrons would need 4 shells. The first shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, the third shell can hold up to 18 electrons, and the fourth shell can hold up to 32 electrons.
How many shell do 2 electrons need?
Only one. The first shell can have up to 2 electrons.
This element has 3 energy shells. The outer shell of this element was determined as illustrated here. According to the Periodic Table of Elements it must be?
Based on the information provided, an element with 3 energy shells corresponds to elements in the third period of the periodic table. The outer electron configuration suggests it could be one of the elements from sodium (Na) to argon (Ar). To determine the specific element, we would need to know the number of valence electrons in the outer shell. If you provide that detail, I can identify the element more precisely.
What element that have one electron in the outer shell and produce a faint purple color when excited?
The element you are referring to is potassium. It has one electron in its outer shell and produces a faint purple color when excited.
What element has more than one shell occupied by electrons but still has the same amount of electrons in each shell?
Sulfur (S) has 6 electrons in its outermost shell and 2 electrons in its innermost shell, but the next shell also has 6 electrons, making it an example of having more than one shell occupied by electrons while still having the same number of electrons in each shell.
How many shell do 4 electrons need?
the first shell holds 2 and the second one holds 8 so you would need 2 shells!
Which element has 6 electrons in the outer shell?
2 because if it was 8 it would be a full shell. 2 because if it was 8 it would be a full shell. 2 because if it was 8 it would have a full shell....
Why do noble gases not normally form compounds?
Noble gases have a full outer shell, meaning that they have no valence electrons and have 8 electrons in their outer shell. If the outer shell is full they do not need electrons, so they would not want to bond with another element to form a compound.
