The atomic number of an element represents
- ANumber of neutrons in the nucleus
- BNumber of protons in the nucleus
- CAtomic weight of element
- DValency of element
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Similar Questions
When $\mathop a\limits^x U$ is converted into $\mathop b\limits^y P$,which of the following represents the correct decrease in the number of neutrons?
Difficult
View SolutionWhich of the following does not contain a number of neutrons equal to that of $_{18}^{40}Ar$?
Medium
View SolutionWhich of the following species are isoelectronic species? $(i)$ $O^{2-}$, $(ii)$ $F^{-}$, $(iii)$ $Na^{+}$, $(iv)$ $Mg^{2+}$
The pair,in which ions are isoelectronic with $Al^{3+}$ is ..... .
Calculate the number of electrons,protons,and neutrons in $Cl_{2}$,$Cl$,and $Cl^{-}$. (Given for $Cl$: $Z = 17$ and $A = 35$)
Easy
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