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How many valence electrons does heluim need to have a filled outermost energy level?
Helium only needs two electrons to have a filled outermost energy level.
How many electrons does carbon need to have the outermost energy shell filled?
Carbon needs to have 8 electron in its outermost shell to have it completely filled, 4 more valence electrons than it has in the neutral for of carbon.
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.
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.
How do you determine the valence electrons in d block elements?
To determine the valence electrons in d-block elements, you consider the outermost energy level, which includes the s and d orbitals. Valence electrons are typically the sum of the electrons in the outermost s orbital and the d orbitals that are being filled. For example, in transition metals, the valence electrons are often given by the configuration of the outermost s electrons (usually 2) plus the number of d electrons present. Thus, for a d-block element, the total number of valence electrons can range from 1 to 10, depending on its position in the periodic table.
How many valence electrons does heluim need to have a filled outermost energy level?
Helium only needs two electrons to have a filled outermost energy level.
The electrons that occupy the outermost filled shell are called?
Outer energy level electrons, or valence electron.
How many electrons does carbon need to have the outermost energy shell filled?
Carbon needs to have 8 electron in its outermost shell to have it completely filled, 4 more valence electrons than it has in the neutral for of carbon.
How many electrons are in the outermost energy level of carbon and how many does it need to have this energy level filled?
Carbon has four electrons in the outermost energy level, which is energy level two. It needs eight electrons to have this energy level filled.
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.
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.
How many valence electrons does helium need to have filled outermost energy level?
helium has 2 valence electrons (in s orbital) and has complete s orbital. So it does not need to gain or lose more electrons to be stable.
Why is a helium atom stable with only two electrons in its outermost energy level?
helium has completely filled valence orbitals and hence is stable
Do Stronium have unpaired electrons?
No, strontium does not have unpaired electrons. It has an electron configuration of [Kr]5s2, meaning the outermost energy level (valence shell) is completely filled with 2 electrons.
How many valence electrones does helium need to have a filled outermost energy level?
helium has 2 valence electrons (in s orbital) and has complete s orbital. So it does not need to gain or lose more electrons to be stable.
What is neon's valence shell?
Neon is a noble gas, thus It has a full valence shell of eight electrons.
How many electrons does it need to have in the outermost energy level filled?
8 electrons
