Worksheet: Nuclide Notation

In this worksheet, we will practice writing and interpreting symbols denoting the element, charge, mass number, and atomic number of atoms and ions.

Q1:

Which isotope is represented by the nuclide symbol 2 4 1 1 N a ?

  • ASodium-13
  • BSodium-11
  • CSodium-35
  • DSodium-24
  • ESodium-37

Q2:

Which element X has an isotope with nuclide symbol 7 9 3 5 X ?

  • A R u
  • B A u
  • C R h
  • D B r
  • E S b

Q3:

Which element X has an isotope with nuclide symbol 5 7 2 5 X ?

  • A G e
  • B L a
  • C P b
  • D M n
  • E M g

Q4:

Which element X has an isotope with nuclide symbol 1 2 1 5 6 X ?

  • A Z n
  • B S b
  • C T b
  • D B a
  • E F e

Q5:

What is the nuclide symbol for radon-224?

  • A 8 8 2 2 4 R a
  • B 2 2 4 8 8 R a
  • C 1 3 8 8 6 R n
  • D 2 2 4 8 6 R n
  • E 8 8 1 3 6 R a

Q6:

Which element X has an isotope with nuclide symbol 3 4 1 4 X ?

  • A N
  • B C d
  • C C a
  • D S i
  • E S e

Q7:

What is the nuclide symbol for an 𝛼 particle, including the charge?

  • A 3 2 2 + H e
  • B 4 2 H e
  • C 3 2 + H e
  • D 4 2 2 + H e
  • E 2 2 H e

Q8:

What is the nuclide symbol for the atom or ion with 25 protons, 20 neutrons and 24 electrons?

  • A 2 0 2 5 M n
  • B 4 9 2 5 + M n
  • C 4 5 2 0 M n
  • D 4 5 2 5 + M n
  • E 4 9 2 0 M n

Q9:

What is the nuclide symbol for the atom or ion with 45 protons, 24 neutrons and 43 electrons?

  • A 6 9 2 4 C r
  • B 6 7 4 3 2 T c
  • C 4 5 6 7 2 H o
  • D 6 9 4 5 2 + R h
  • E 4 3 6 9 2 + T m

Q10:

What is the nuclide symbol for the atom with 53 protons, 89 neutrons and 54 electrons?

  • A 1 4 3 5 4 T e
  • B 8 9 5 3 I
  • C 1 4 2 5 4 T e
  • D 1 4 2 5 3 I
  • E 8 9 5 4 + T e

Q11:

What is the nuclide symbol for the atom with 97 protons, 146 neutrons and 97 electrons?

  • A 9 7 1 4 6 B k
  • B 1 4 6 9 7 B k
  • C 1 9 4 9 7 B k
  • D 2 4 3 9 7 B k
  • E 9 7 9 7 B k

Q12:

Which of the following is a true description of 2 3 4 9 2 U ?

  • AThe atom contains 234 neutrons.
  • BThe atom is an isotope of 2 3 4 9 4 P u .
  • CThe atom has an atomic mass number of 92.
  • DThe atom has the same electron configuration as 2 3 8 9 2 U .
  • EThe atom has the same nuclear binding energy as 2 3 8 9 2 U .

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