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Why do elements as a family or group share similar properties?

Elements in the same group have the same number of valence electrons, which determines their chemical properties. This leads to similarities in reactivity and chemical behavior among elements in the same group.


How many valence electrons do most elements need to become stable?

8 valence electrons are needed for an element to become stable, which is why the noble gases do not interact with any other elements. They are already stable. However, the exception is Helium, the first noble gas, which only has two valence electrons. 8 valence electrons are needed on the 2nd and 3rd valence shells for any molecule to become stable.


What are two elements that need 3 electrons to complete it's valence shell?

Two elements that need 3 electrons to complete their valence shell are nitrogen and phosphorus. Nitrogen has 5 electrons in its valence shell and needs 3 more to have a full shell, while phosphorus has 5 electrons in its valence shell as well and requires 3 more to achieve stability.


How many electrons does an atom need to a outer energy level?

There are different numbers of valence electrons in different elements.


The most reactive elements have how many valence electrons?

The most reactive elements require to lose or gain the least number electron(s) to attain a noble gas structure. These are elements in group one as they need to lose one electron, and elements in group seven as they need to gain one electron.


Why do group one elements have similar properties?

;need the same number of electrons to fill their valece shells ;have the same number of valence electrons


Why do elements in a group share similar properties?

all the members of a group of element have similar chemical properties because they all have the same number of electrons in their valence bands.The periodic table of elements is arranged this way,that is,by electron structure. The valence columns are the groups of elements , and is their electron structure that places them where they are.


Elements in the same group have similar properties because they have the same?

the same number of electrons needed to fill their octet, the same number of valence electrons,


What is the minimum amount of valence electrons an atom can have?

To answer this, we simply need to consider the lightest of the chemical elements, hydrogen. Hydrogen's atomic number, and thus its number of protons and electrons, is 1. So, by necessity, that is the minimum amount of valence electrons an atom can have.


How do you find valence electons on a periodic table?

To determine the number of valence electrons on the periodic table you look at columns 1,2 and 13-18. For columns 13-18 you just need to subtract ten from column number. For example, column 13 elements have 3 valence electrons. Most chemistry courses avoid the transition elements but you only need to consider the outer orbital of electrons.


How many valence electrons will result in chemical stability for an atom?

A full outer shell of electrons typically results in chemical stability for an atom. This corresponds to 8 valence electrons for most atoms (except hydrogen and helium, which only need 2 valence electrons for stability).


How do you find the number of valence elections?

To find the number of valence electrons for an atom, you need to look at its electron configuration. The valence electrons are the electrons in the outermost energy level of an atom. You can determine the number of valence electrons by looking at the electron configuration or the periodic table. For main group elements (Groups 1, 2, 13-18), the number of valence electrons is given by the group number. For example, group 1 elements have 1 valence electron, group 2 have 2 valence electrons, and so on.