Question

1. name each isotope, and write it in symbolic notation.

a. atomic number 26; mass number 56
b. atomic number 29; mass number 64
c. atomic number 17; mass number 37

1. how many protons, electrons, and neutrons are in each of the following isotopes?

a. uranium - 235
b. hydrogen - 3
c. silicon - 29

1. how many neutrons does europium - 151 have what is the isotopes mass number?

Explanation:

Step1: Find the element

For part a, atomic number \(26\) corresponds to iron (\(Fe\)).
For part b, atomic number \(29\) corresponds to copper (\(Cu\)).
For part c, atomic number \(17\) corresponds to chlorine (\(Cl\)).

Step2: Write the isotope name

The isotope name is written as "element - mass number".
So, a is iron - 56, b is copper - 64, c is chlorine - 37.

Step3: Write the symbolic notation

The symbolic notation is \(\ce{^{A}_{Z}X}\), where \(A\) is the mass number and \(Z\) is the atomic number.
For a: \(\ce{^{56}_{26}Fe}\)
For b: \(\ce{^{64}_{29}Cu}\)
For c: \(\ce{^{37}_{17}Cl}\)

Answer:

a. Name: iron - 56; Symbolic notation: \(\ce{^{56}_{26}Fe}\)
b. Name: copper - 64; Symbolic notation: \(\ce{^{64}_{29}Cu}\)
c. Name: chlorine - 37; Symbolic notation: \(\ce{^{37}_{17}Cl}\)