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Valency
Elements in the same family (or group) have the same amount of electrons in their outer shell. For Example, all elements in Group 1 have 1 electron in their outer shells.
The family of elements that react readily with metals is the halogens. This group includes elements such as fluorine, chlorine, bromine, iodine, and astatine. Halogens are highly reactive nonmetals that readily form compounds with metals by gaining an electron to achieve a stable electron configuration.
The Halogen family (which consists of Fluorine, Chlorine, Bromine, Iodine and Astatine) have 7 valance electrons. I know that the atoms of these elements only need to GAIN 1 electron to fill their outtermost energy level.
Chemical families are also known as the columns on the periodic tables. The general trend is that the amount of energy required to lose an electron decreases as you move down a column, or chemical family.
Every elements have the electrons of an atom distribution or a molecule in molecular orbitals and it is called electron configuration. The element that can be grouped in the family with above electron configuration is called antimony.
Valency
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Nonmetals, expecially halogens.
Elements in the same family (or group) have the same amount of electrons in their outer shell. For Example, all elements in Group 1 have 1 electron in their outer shells.
The family of elements that react readily with metals is the halogens. This group includes elements such as fluorine, chlorine, bromine, iodine, and astatine. Halogens are highly reactive nonmetals that readily form compounds with metals by gaining an electron to achieve a stable electron configuration.
The Halogen family (which consists of Fluorine, Chlorine, Bromine, Iodine and Astatine) have 7 valance electrons. I know that the atoms of these elements only need to GAIN 1 electron to fill their outtermost energy level.
Chemical families are also known as the columns on the periodic tables. The general trend is that the amount of energy required to lose an electron decreases as you move down a column, or chemical family.
The period (row) indicates how many electron shells the element has and the family (column) indicates how many valence electrons the element has.
Because all the atoms of these elements in Family 18 have filled outermost energy levels.
Because it helps with their electron configuration.
The Halogens F, Cl, Br, I, At