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How many electrons are needed to fill the first three electron shells?
Wiki User
∙ 11y ago
6 electrons
From the inside out, two, eight and eight.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoThe number of electrons in any given shell can be represented by 2n2, where n = the shell number. In the first shell, there can be 2 electrons.
Wiki User
∙ 10y ago28 electrons can fit in the first 3 shells
Wiki User
∙ 11y ago2 + 8 + 18 = 28
Wiki User
∙ 6y agofirst shell 2. second and third shell 8.
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What is the number of of electron shells in CALCIUM?
4 electron shells; 2 electrons in first, 8 in second, 8 in third and 2 in valence shell.
what is electron structure of argon?
the number of electrons in each shell, i.e. 2 in the first shell, and 8 electrons in the other 2 shells.
How many electron shells does Argon have?
3 shells; 2 electrons in the first shell, 8 in the second shell and 8 in the third shell.
How many electrons are in each of the first two shells if an atom contains eight electrons?
The first shell can have 2 electrons, the second shell has 8 electrons and the third shell has 8 electron also. No matter what, electron fill up the first shell and then move into the next shell and then the next one. To answer the question, the first shell would have 2 electron and then the second shell would have six.
How many electrons does krypton have in each electron shell?
how many energy levels are filled in a krypton atom They have four levels. You always put 2 in the first. 8 in the second. 18 in the third. And I believe you are able to put 36 in the fourth level, but correct me if I'm wrong about the fourth level.
What is the number of of electron shells in CALCIUM?
4 electron shells; 2 electrons in first, 8 in second, 8 in third and 2 in valence shell.
How many electrons shells does a helium atom have?
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
How many electron shells does an atom of oxygen have?
An oxygen atom has two shells. The first contains two electrons, and the second contains six electrons.
what is electron structure of argon?
the number of electrons in each shell, i.e. 2 in the first shell, and 8 electrons in the other 2 shells.
How many electron shells does Argon have?
3 shells; 2 electrons in the first shell, 8 in the second shell and 8 in the third shell.
What is the set of numbers that shows the arrangement of electrons in their shells?
The set of numbers that shows the arrangement of electrons in their shells is known as the electron configuration. It is based on the principle that electrons fill the lowest energy levels first before moving to higher energy levels. The electron configuration is typically represented by a series of numbers and letters indicating the number of electrons in each energy level and orbital.
How many electrons are in each of the first two shells if an atom contains eight electrons?
The first shell can have 2 electrons, the second shell has 8 electrons and the third shell has 8 electron also. No matter what, electron fill up the first shell and then move into the next shell and then the next one. To answer the question, the first shell would have 2 electron and then the second shell would have six.
How many shells in sodium?
the sodium atom has 3 shells where 2 electrons are in the first shell, 8 in the second and 1 in the third shell; which isn't stable..... and its symbol is Na :)
What are the 3 main rules of the electron configuration?
Atoms can have as many electron shells as they need. The first electron shell can only contain 2 electrons but the rest can contain 8. Electron arrangement patterns down a group : the # of complete electrons shells increases by 1. The # of group is the same as the # of electrons in the outer shell. (ex. Group 2 there will be 2 electrons in the outer shell) Electron arrangement patterns across a period : the # of complete electron shells stays the same. The # of electrons increases by 1 each time. When a new period starts, that's when a new shell is added. Hope this was helpful :)
How many electrons does krypton have in each electron shell?
how many energy levels are filled in a krypton atom They have four levels. You always put 2 in the first. 8 in the second. 18 in the third. And I believe you are able to put 36 in the fourth level, but correct me if I'm wrong about the fourth level.
How many occupied energy levels does a rubidium atom have?
Rubidium has 5 shells because the first shells has 1 electron, the next 2 shells have 8 electrons, the fourth shells has 18 electrons and the last shells has 2 electrons. the atomic number is 37, 1+8+8+18+2=37. Therefore Rb has 5 shells. :D
The happy atoms are the blank gases They dont react because blank?
The happy atoms are the noble gases. They don't react because their valence electron shells are full. The goal of every element is to have the most outer shell of electrons full. The first shell holds 2 electrons, and every shell after that holds 8 electrons. So helium and hydrogen both want to have 2 electrons in their outer shells. Elements like neon and argon have 8 electrons in their outer shells. Atoms like chlorine and fluorine have 7 electrons in their outer shells. This means that aren't "happy" because they want to have 8. This is why they ionically bond with atoms like sodium that have 1 electron in their outer shells. Sodium gives that electron to chlorine and now both have 8 electrons in their outer shells.
