1.

An element \[X\] has two isotopes, which may be represented as \[^{238}X\] and\[^{235}X\]. How does \[^{238}X\] differ from\[^{235}X\]?

A. \[^{238}X\]has \[3\] more protons and \[3\] more electrons than\[235\].
B. \[^{238}X\] has \[3\] more protons, but same number of electrons as\[235\].
C. \[^{238}X\] has \[3\] more neutrons, but the electrons or protons are same as\[235\].
D. \[^{238}X\] has \[3\] more protons, but same number of electrons as\[235\].
Answer» D. \[^{238}X\] has \[3\] more protons, but same number of electrons as\[235\].


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