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I assume you are referring to valence electrons (the "outermost" shell varies widely in the number of electrons it can hold, the valence electrons are a subset of this which are responsible for chemical bonding and reactivity).
The number of valence electrons can only be from 1 electron to 8 electrons, these are divided between the s and p orbitals of a shell (each orbital can hold no more than 2 electrons).
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If the first and second energy levels of an atom are full.what would be the total number of electrons in the atom?
First energy level can hold 2 electrons.Second energy level can hold 2 + 6 = 8 electrons. Total = 10 electrons.
What does t he energy levels of an atom hold?
The energy levels of an atom hold electrons.
What atom can hold 18 electrons in its outer level?
No atom can hold 18 electrons in its outer energy shell - there is the valence rule, stating that the maximum for the outer shell is 8 electrons.
The first energy level of any atom can only hold how many electrons?
The first shell of an atom can hold 2 electrons. This does not mean that all atoms do have 2 electrons in their first shell. The exception is hydrogen (atomic number = 1) which has only 1 electron in its first shell before reacting with other atoms. Larry Mike Domingo 09072626008
What is the number of electrons that can occupy the first shell of an atom?
The first shell can hold two electrons only.
If the first and second energy levels of an atom are full.what would be the total number of electrons in the atom?
First energy level can hold 2 electrons.Second energy level can hold 2 + 6 = 8 electrons. Total = 10 electrons.
What does t he energy levels of an atom hold?
The energy levels of an atom hold electrons.
The first energy level of an atom can hold a maximum of how many electrons?
two
How many electrons can an atom's third energy level hold?
The third energy level of an atom can hold eight electrons.
How many electrons can the first energy level in the electron cloud hold?
The first energy level can hold 2. The second level can hold 8. The third level can hold 18. Fourth and beyond can hold 32.
What atom can hold 18 electrons in its outer level?
No atom can hold 18 electrons in its outer energy shell - there is the valence rule, stating that the maximum for the outer shell is 8 electrons.
How many electrons can the second energy of an atom hold?
8 I think
How many electrons can the outer level of an atom hold?
an atom has different energy orbitals: s, p, d, and f. each orbital can hold two electrons. the outside energy or highest energy levels of electrons is called the valence shell or valence electrons. for an atom to be stable it wants the electron configuration for the valence shell to be "s2, p6." to answer your question the outer level of an atom can hold 8 electrons. it is called the valence shell.
The 3rd energy level of an atom can hold how many electrons?
16 maximum
Why is the 11th electron of the sodium atom located in the third energy level?
Each energy level can hold different number of electrons. The first energy level holds 2, second holds 8, and third holds 8. Because the first two energy levels of sodium can only hold 10 electrons, the sodium has a third energy level to hold the 11th electron.
How many electrons are in the first shell of a oxygen atom?
The electron configuration of an oxygen atom is (2, 6). Meaning it has 2 electrons in its first shell and 6 in its second.The energy levels of atoms are limited to how many electrons they can hold.The first energy level can only hold a maximum of 2 electrons the second has a maximum of 8 and the third has a maximum of 18 etc.Hope this Helps!
Why a stairway is a good model for the energy levels in a atom?
A stairway is a good model for the energy levels in an atom because there is a 'main floor' ( the nucleus ) and steps ( the energy levels ). The nucleus is the start of the stairway of the energy levels, and the other energy levels go off of the nucleus. The first energy level can hold 2 electrons, the second energy level can hold 8. The third energy level can hold 18, and the fourth energy level can hold 32 electrons. In order for an element to be as stable as a noble gas, the outermost energy level has to be full, so sometimes an atom will gain or lose electrons to fill it's outer energy level. Other times it might share electrons with other atoms, so that they don't have to gain or lose a lot of electrons. An example of this would be H2O ( water ). There is one oxygen atom with two hydrogen atoms connected to it, and sharing their electrons with each other.
