How many total electrons can an atom have in its 1st energy level?
How many total electrons can an atom have in its 1st energy level?
two electrons
For example, energy level I can hold a maximum of two electrons, and energy level II can hold a maximum of eight electrons. The maximum number depends on the number of orbitals at a given energy level. An orbital is a volume of space within an atom where an electron is most likely to be found.
How do you find the number of electrons in the first energy level?
To calculate the maximum number of electrons in each energy level, the formula 2n2 can be used, where n is the principal energy level (first quantum number). For example, energy level 1, 2(1)2 calculates to two possible electrons that will fit into the first energy level.
How many electrons must be in the first energy level of an atom for it to be stable?
8 electrons
Atoms tend to be most stable with a full outer shell (one which, after the first, contains 8 electrons), leading to what is commonly called the “octet rule”. The properties of an element are determined by its outermost electrons, or those in the highest energy orbital.
What is the maximum amount of electrons that can fit in the first energy level of sulfur?
Sulfur has the atomic number 16; therefore, it has 16 protons and 16 electrons. The first energy level will fill up with two electrons.
Which electron has the highest energy?
Valence electrons
Valence electrons are the highest energy electrons in an atom and are therefore the most reactive.
How many electrons are in each level?
There are 2 electrons on the first energy level, 8 electrons on the second level, 8 electrons on the third energy level, and 1 on the fourth energy level. Explain that after the third energy level has 8 electrons, the next electron goes into the fourth level.
How many electrons can first energy hold?
2 electrons
There are 2 electrons on the first energy level, 8 electrons on the second level, and 8 electrons on the third energy level.
Which Subshell is lowest in energy?
➡️The s subshell is the lowest energy subshell and the f subshell is thehighest energy subshell.
What is the 2 8 8 rule in chemistry?
There is a 2-8-8 rule for these elements. The first shell is filled with 2 electrons, the second is filled with 8 electrons, and the third is filled with 8. You can see that sodium (Na) and magnesium (Mg) have a couple of extra electrons. They, like all atoms, want to be happy.
Is it 8 or 18 electrons in third shell?
So the third shell can be considered to hold 8 or 18 electrons but in total the third shell can hold 18 electrons.
How many electrons can each energy level hold?
The maximum number of electrons that an energy level can hold is determined from the formula 2n^2 equals the total number, where n is the energy level. Thus, the first energy level holds 2 * 1^2 = 2 electrons, while the second holds 2 * 2^2 = 8 electrons.
How many energy levels do atoms have in the first period?
Number of energy levels in each period The atoms in the first period have electrons in 1 energy level. The atoms in the second period have electrons in 2 energy levels. The atoms in the third period have electrons in 3 energy levels. The atoms in the fourth period have electrons in 4 energy levels.
How many electrons are on the first energy level of sodium?
There are 2 electrons on the first energy level, 8 electrons on the second level, and 1 electron on the third energy level. Explain that the second energy level can only have 8 electrons so the next electron in sodium has to be on the next (third) level.
How many electrons are on the first energy level of potassium?
Potassium Explain that potassium has 19 protons and 19 electrons. There are 2 electrons on the first energy level, 8 electrons on the second level, 8 electrons on the third energy level, and 1 on the fourth energy level. Explain that after the third energy level has 8 electrons, the next electron goes into the fourth level.