give me answer of 7,8,9??!!!!!!?!!!!!????!!??
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7.the combining power of an element is specially as measured by the number of hydrogen atoms which can displace or combine with is known as valency.
8. in chemistry the valency valency of an element is a measure of its combining power with other atoms and it forms chemical compounds or a molecule. some elements having zero valency: Helium,neon,Argon.
9. one member of a family of chemical elements that has the same chemical properties but different masses.
8. in chemistry the valency valency of an element is a measure of its combining power with other atoms and it forms chemical compounds or a molecule. some elements having zero valency: Helium,neon,Argon.
9. one member of a family of chemical elements that has the same chemical properties but different masses.
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