If the atomic weight of an element is 23 time | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The lightest element is hydrogen,which has an atomic weight of approximately $1$. Given that the atomic weight of the element is $23$ times that o

Vedclass · Accepted Answer

$11$ protons,$12$ neutrons,$11$ electrons

Vedclass · Answer

(C) The lightest element is hydrogen,which has an atomic weight of approximately $1$. Given that the atomic weight of the element is $23$ times that of hydrogen,its mass number $(A)$ is $23$. The number of protons $(Z)$ is given as $11$. Since the mass number is the sum of protons and neutrons $(A = Z + N)$,we have $23 = 11 + N$,which gives $N = 12$ neutrons. For a neutral atom,the number of electrons is equal to the number of protons,so there are $11$ electrons. Thus,the element contains $11$ protons,$12$ neutrons,and $11$ electrons.

If the atomic weight of an element is $23$ times that of the lightest element and it has $11$ protons,then it contains

Similar Questions

An atom which has lost one electron would be

Assertion : Atoms are not electrically neutral.
Reason : Number of protons and electrons are different.

Which of the following pairs represents an iso-electronic species?

An ion with mass number $37$ possesses one unit of negative charge. If the ion contains $11.1 \%$ more neutrons than the electrons,find the symbol of the ion.

Which of the following species are isoelectronic species? $(i)$ $O^{2-}$,$(ii)$ $F^{-}$,$(iii)$ $Na^{+}$,$(iv)$ $Mg^{2+}$

Vedclass Test Series

Exam Paper Generator

Online Exam Module