atomic-structure

Related Questions

• An element has electronic configuration $2$,$8$,$18$,$1$. If its atomic weight is $63$,then how many neutrons will be present in its nucleus

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• What is the ratio of mass of an electron to the mass of a proton

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• The mass number of an anion,${X^{3 - }}$,is $14$. If there are ten electrons in the anion,the number of neutrons in the nucleus of atom,${X_2}$ of the element will be

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• Which of the following particles has more electrons than neutrons

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• Existence of positively charged nucleus was established by

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