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== == The valency of an element is the measure of electrons it needs or needs to loose to obtain a stable structure (a noble gas structure, such as helium, neon, argon ...) for example in NaCl, sodium has 11 electrons which means 1 valence electron, chlorine has 17 electrons which means it has -1 valence electrons; so sodium looses 1 electron and chlorine gains that electron so sodium ends up with 10 electrons (Neon's electron structure) and chlorine ends up with 18 electrons (Argon's electron structure) the number of outer electrons. Noble elements are the most stable elements (thats why they don't react well and stay alone, like helium) so all the other elements try to obtain the noble electron structure. Elements usually gain or loose 4 electrons.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoelements whose valency is 1.. lyk hydrogen
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What is the valency of 31st element?
2,8,18,3
What is the valency of the last element in the 3rd group of modern periodic table?
The valency is 3+
What is valency of 17 element?
This is Cl, chlorine, with multiple valency values: -1, +1, +3, +5, +7
What is valency number for NH4?
The valency of Ammonium (NH4) is +1.
What elements in an element family have similar?
Valency
What is the valency of the smallest element?
the smallest element is hydrogen of which its valency is one.
What is the valency of an element sodium chloride?
the valency of element sodium chloride is 1
How do you find valency?
The valency of an element measures its ability to combine with other elements. This valency is determined by the number of electrons in the outer shell of each atom of an element.
How do you find out valency of manganese?
Manganese is a transition element and has a variable valency but generally has a valency of 2 and exists as Mn2+
What is the meaning of valency?
Valency (in chemistry) is the number of the valence bonds of a chemical element.
What is the valency of 31st element?
2,8,18,3
What is the valency of elements?
The valency of an element is the number of electrons an atom of that element wants to gain, lose or share in order to be chemically stable.
What is the valency of the last element in the 3rd group of modern periodic table?
The valency is 3+
What is bivalent ions?
an element which has valency 2
Which element has 4 and 6 valency?
Sulphur
Radical - positive and negative radical in chemistry?
Valency is the number of hydrogen atoms that can combine with [or displace] one atom of the element [or radical] to form a compound. For example, one atom of hydrogen combines with one atom of chlorine to form hydrogen chloride [HCl]; so, the valency of chlorine [chloride] is one. Similarly, the valency of the nitrate radical [NO3] in the compound nitric acid [HNO3] is 1, and the valency of the sulfate radical in the compound sulfuric acid [H2SO4] is 2. For elements that do not combine with hydrogen, the valency is the combining power of the element with another element whose valency is known. Valency may also be defined as the number of electrons that an atom donates or accepts to form the duplet state (i.e., 2 electrons in outermost shell) or octet state (i.e., 8 electrons in outermost shell). The valency of an element [or radical] is always a whole number. Elements [or radicals] with valency one are monovalent, those with valency two are divalent, and those with valency three are trivalent
Which element has least valency?
The noble gases have the least valency which is zero. It is because thay have a complete shells.
