Question

Give the nuclear symbol for the isotope of silicon (z=14) for which a=29?

Answer 1

Every element is represented by a nuclear symbol, which contains of three parts: (a) the atomic number, (b) the symbol and (c) the mass number of the specific isotope of the element. The symbol is represented as:

`_(Z)^(A)X`

where, X is the chemical symbol of the element, A is mass number (sum of number of protons and neutrons in the nucleus), and Z is atomic number (number of protons in nucleus).

The atomic symbol of silicon is
`Si`

Atomic number of isotope of silicon,
`Z = 14`

Mass number of silicon,
`A = 29`

So, the nuclear symbol for the isotope of silicon is
`_(14)^(29)Si`.