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There are two elements which can have a filled outer electron shell with only two electrons, those being the first two elements on the Periodic Table: hydrogen and helium. Their outer shell is the frist shell, principal quantum number 1.
Also note that Hydrogen can also achieve a stable electron configuration with no electrons, in which case it consists of a single, naked proton.
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Which electrons in an atom have the highest energy level?
Electrons in the outermost energy level (valence electrons) have the highest energy level. These electrons are involved in the atom's chemical reactions and bonding with other atoms.
Valence electrons in a sentence?
valence electrons are the electrons found in the outermost energy level of bohr diagram for an element.
What two atoms will have their outer energy level filled with two electrons?
Helium and neon will have their outer energy level filled with two electrons. Helium has 2 electrons in its only energy level, while neon has 8 electrons in its second energy level.
Do ions have a full valence shell?
No, atoms with filled valence shells do not tend to form chemical bonds because a filled valence shell means the atom is already stable. It doesn't "want" to share with or take electrons from other atoms to become stable. Although sometimes, these atoms can be found in compounds, it takes a great deal of energy and forcing.
What is the valance electrons in calcium?
Calcium has 2 valence electrons. Valence electrons are the electrons in the outermost energy level of an atom and are involved in forming chemical bonds with other atoms.
Why do valence electrons determine the reactivity of an atom?
The valence electrons are the outermost electrons. In an atom, its lower energy levels have been filled and are therefore stable. But, except for the noble gases, the valence energy level is not filled, and therefore not stable. So atoms must undergo chemical reactions in order to fill their valence shells and become stable. They can do this by sharing electrons, transferring electrons, or by forming a sea of electrons shared by all the atoms.
Helium atoms only need how many valence electrons to have a filled outermost energy level?
Helium atoms only need 2 valence electrons to have a filled outermost energy level because helium is in the first period of the periodic table and its outermost energy level can only hold a maximum of 2 electrons.
Electrons that exist in an atoms highest occupied energy level are known as?
valence electrons
What atoms need only 2 valence electrons to have a filled out level?
Helium.
What do shells (energy levels) and valence electrons have to do with atoms combining to make molecules?
Valence electrons form the bonds between atoms in a molecule.
Which electrons in an atom have the highest energy level?
Electrons in the outermost energy level (valence electrons) have the highest energy level. These electrons are involved in the atom's chemical reactions and bonding with other atoms.
Valence electrons in a sentence?
valence electrons are the electrons found in the outermost energy level of bohr diagram for an element.
What two atoms will have their outer energy level filled with two electrons?
Helium and neon will have their outer energy level filled with two electrons. Helium has 2 electrons in its only energy level, while neon has 8 electrons in its second energy level.
What type of electron is available to form bonds?
Valence electrons, which are the electrons in the outermost energy level of an atom, are available to form bonds with other atoms. These electrons are involved in the formation of chemical bonds.
How do atoms get stable outer energy level?
They share their valence electrons
What are the electrons in the outer most energy level of an atom called?
The electrons in the outermost energy level of an atom are called valence electrons. These electrons are involved in forming chemical bonds with other atoms to achieve a stable configuration.
Those electrons that are largely responsible for an atoms chemical behavior are called?
The outermost electrons in an atom that are responsible for all chemistry are known as valence electrons.
