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What is the general name of the elements having 2 or 8 electrons in their valence shell?
Wiki User
∙ 10y ago
Those with 2: alkaline earths.
Those with 8: noble gases.
Please see the links.
Wiki User
∙ 10y ago
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How can you use a periodic table to predict the number of valence electrons an element has without having to draw the Bohr diagram?
In general, except for the transition elements, the group number will tell you the number of valence electrons. For example, Na is in group 1 and has 1 valence electron. Cl is in group 7 and has 7 valence electrons.
What is the purpose of elements to lose or gain valence electrons to become an ion?
they want to become stable by having all of the valence filled they want to become stable by having all of the valence filled
What kind of elements has less than 4 valence electrons?
Boron group, transition metals, alkaline earth metals and alkali metals are listed in the Periodic Table are having less than four valence electrons
Why are flourinechlorinebromine and iodine grouped together?
Because they have similar chemical properties. The reason they have similar chemical properties is because they have the same number of valence electrons. The differences are caused by them having different masses and because the larger elements have their valence electrons "screened" more from the nucleus by electrons in lower energy levels.
Which elements have one valence electron?
In addition to hydrogen, all elements in Group I of the periodic table have one valence electron. They are lithium, sodium, potassium, rubidium, cesium, and francium. The farther you move right on the periodic table the more valence electrons. For example, elements in Group VII have 8 valence electrons except helium.
How can you use a periodic table to predict the number of valence electrons an element has without having to draw the Bohr diagram?
In general, except for the transition elements, the group number will tell you the number of valence electrons. For example, Na is in group 1 and has 1 valence electron. Cl is in group 7 and has 7 valence electrons.
How do valence electrons tell you what elements will bond together?
Atoms only bond if it helps them achieve their goals of having 8 valence electrons. That is why noble gases do not bond; they already have 8 valence electrons.
What is the purpose of elements to lose or gain valence electrons to become an ion?
they want to become stable by having all of the valence filled they want to become stable by having all of the valence filled
Which compounds are tetravalent?
Tetravalent means having 4 valence electrons. The elements in the 14th group are tetravalent. They do not lose or gain electrons. they gain electrons.
Is the stability of the noble gas elements other than helium is a result of their having eight valence electrons?
Yes, the stability of noble gas elements other than helium is due to their having eight valence electrons. This electron configuration, known as an octet, gives them a full outer energy level, making them highly stable and less likely to form chemical bonds with other elements.
Inert gas having 8 valence electrons?
mercury is an inert gas having 8 valence electrons
How is the reactivity of a element releated to the outer shell?
The outer, or valence shell of electrons is closely related to an element's reactivity. First of all, the valence electrons are the only part of an atom that participate in a chemical reaction. The closer an atom's number of valence electrons is to eight (remember the octet rule), the more reactive it typically is. Elements with only 1 valence electron* (group 1) and elements with 7 valence electrons (group 17) are the most reactive. *Remember, having only 1 valence electron means once you lose it, you now have 8 electrons that were in the shell below it.*
Are having eight valence electrons makes atoms very reactive?
No, eight valence electrons completely fills the valence band and makes the atom inert. The most reactive atoms have either one valence electron or seven valence electrons.
What kind of elements has less than 4 valence electrons?
Boron group, transition metals, alkaline earth metals and alkali metals are listed in the Periodic Table are having less than four valence electrons
Why do atoms with a weak electronegativity like lithium have a weak attractive force for electrons?
they have few valence electrons and aren't close to having eight valence electrons
Why do element properties change in a regular way across a period?
As atomic number increases, the number of electrons also increases except for Period 1 because it ends with a number of valence electrons with higher energy , (This pattern means that the elements within a group always have the same number of valence electrons having the result of having similar properties.)
Why do properties of element change in Regular way across a period?
As atomic number increases, the number of electrons also increases except for Period 1 because it ends with a number of valence electrons with higher energy , (This pattern means that the elements within a group always have the same number of valence electrons having the result of having similar properties.)
