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# An element along with its atomic number and mass number is represented as ${}_Z{X^A}$ where $X$ is the symbol of the element, $Z$ is the atomic number and $A$is the mass number Represent elements$A$, $B$, $C$,$D$ and $E$ with its atomic number and mass number from the given data.ElementsNumber of protonsNumber of electronsNumber of neutrons$A$$x$$y$$B$$a$$b$$C$$m$$m + 2$$D$$t$$t$$E$$n$$n + 1$

Last updated date: 13th Jun 2024
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Hint: The number of protons and electrons in any element is the same since the element has to be electrically neutral. Mass number of an element is the sum of the number of protons and number of neutrons and it is written as superscript on the element symbol.

Number of neutrons = atomic mass number - atomic number of protons = number of electronsNumber of protons is equal to the atomic number. So according to formula we can represent
Element $A$is represented as ${}_x{A^{y + x}}$
Atomic number ($Z$) = $x$
Atomic mass ($A$) =$y + x$
As we know number of protons is equal to number of electron so the unknown box in element $A$ is $x$

Element $B$ is represented ${}_a{B^{a + b}}$
Atomic number ($Z$) = $a$
Atomic mass ($A$) =$a + b$
As we know number of protons is equal to number of electron so the unknown box in element $B$ is ${\mathbf{a}}$

Element $C$ is represented ${}_m{C^{2m + 2}}$
Atomic number ($Z$) =$m$
Atomic mass ($A$) =$2m + 2$
As we know number of protons is equal to number of electron so the unknown box in element $C$ is ${\mathbf{m}}$
Element $D$ is represented ${}_t{D^{2t}}$
Atomic number ($Z$) =$t$
Atomic mass ($A$) =$2t$
As we know number of protons is equal to number of electron so the unknown box in element $D$ is ${\mathbf{t}}$
Element $E$ is represented ${}_n{E^{2n + 1}}$
Atomic number ($Z$) =$n$
Atomic mass ($A$) =$2n + 1$
As we know number of protons is equal to number of electron so the unknown box in element is $E$ is ${\mathbf{n}}$

 Elements Number of protons Number of electrons Number of neutrons $A$ $x$ $x$ $y$ $B$ $a$ $a$ $b$ $C$ $m$ $m$ $m + 2$ $D$ $t$ $t$ $t$ $E$ $n$ $n$ $n + 1$

Protons are charged ,neutrons are uncharged and electrons are charged . The charge of $1$ electron balances the charge of $1$ proton