For the following isotopes that have missing information, fill in the missing information to complete the notation

(a)\(_{14}^{34}X\)

(b)\(_X^{36}P\)

(c)\(_X^{57}Mn\)

(d)\(_{56}^{121}X\)

The general representation of an element is:\(_Z^AX\), where \(Z\)is the atomic number of element and A is the mass number.

Atomic number of element is the number of protons and it is equal to the number of electrons in an atom.

Mass number is the total number of proton and neutron in an atom.

We have\(_{14}^{34}X\). We need to look at the periodic table and find an element which has an atomic number 14 and mass number 34. That element is silicon (Si).

The element is: \(_{14}^{34}{\rm{Si}}\).

We have\(_X^{36}P\). We need to look at the periodic table and find the atomic number of phosphorus, which is \(15.\)

The element is: \(_{15}^{36}P\)

We have\(_X^{57}Mn\). We need to look at the periodic table and find the atomic number of manganese, which is 25 .

The element is:\(_{25}^{57}Mn\).

We have\(_{56}^{121}X\). We need to look at the periodic table and find an element which has an atomic number 56 and mass number 121. That element is barium (Ba).

The element is:\(_{56}^{121}Ba\).