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 nuclide symbol 2411Na?

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

Q2:

Which element X has an isotope with nuclide symbol 7935X?

  • ARh
  • BSb
  • CAu
  • DRu
  • EBr

Q3:

Which element X has an isotope with nuclide symbol 5725X?

  • APb
  • BGe
  • CMg
  • DLa
  • EMn

Q4:

Which element X has an isotope with nuclide symbol 12156X?

  • AFe
  • BTb
  • CZn
  • DSb
  • EBa

Q5:

What is the nuclide symbol for radon-224?

  • A88136Ra
  • B22486Rn
  • C22488Ra
  • D88224Ra
  • E13886Rn

Q6:

Which element X has an isotope with nuclide symbol 3414X?

  • ACa
  • BSi
  • CCd
  • DN
  • ESe

Q7:

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

  • A32+He
  • B422+He
  • C42He
  • D22He
  • E322+He

Q8:

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

  • A4925+Mn
  • B2025Mn
  • C4920–Mn
  • D4525+Mn
  • E4520Mn

Q9:

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

  • A6924Cr
  • B69452+Rh
  • C43692+Tm
  • D67432–Tc
  • E45672–Ho

Q10:

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

  • A14253–I
  • B8954+Te
  • C14254Te
  • D8953–I
  • E14354–Te

Q11:

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

  • A19497Bk
  • B14697Bk
  • C97146Bk
  • D9797Bk
  • E24397Bk

Q12:

Which of the following is a true description of 23492U?

  • AThe atom contains 234 neutrons.
  • BThe atom has the same nuclear binding energy as 23892U.
  • CThe atom is an isotope of 23494Pu.
  • DThe atom has the same electron configuration as 23892U.
  • EThe atom has an atomic mass number of 92.

Q13:

Which noble gas has an isotope whose neutral atom contains 75 neutrons and 54 electrons?

  • AIodine
  • BKrypton
  • CRadon
  • DXenon
  • EBromine

Q14:

Which alkali metal has 11 protons and a mass number of 23?

  • AMagnesium
  • BCalcium
  • CSodium
  • DLithium
  • EPotassium

Q15:

What is the symbol for the ion with atomic number 55, mass number 133, and a 1+ charge?

  • A13356Ba
  • B13354Xe
  • C7854+Xe
  • D7855+Cs
  • E13355+Cs

Q16:

Which isotope is represented by the nuclide symbol 19477Ir?

  • AIridium-194
  • BIridium-77
  • CIron-117
  • DIron-77
  • EIron-194

Q17:

Which alkaline earth metal’s cation contains 138 neutrons and 86 electrons?

  • AThorium
  • BBarium
  • CRadon
  • DFrancium
  • ERadium

Q18:

What is the symbol for the ion with mass number 31, 18 electrons, and a 3βˆ’ charge?

  • A13153–P
  • B31183–Ar
  • C31153–P
  • D3121Sc
  • E1318Ar

Q19:

An ion has the symbol 342–S.

How many protons does the ion contain?

How many neutrons does the ion contain?

How many electrons does the ion contain?

Q20:

What is the symbol for the ion containing 54 electrons, 53 protons, and 74 neutrons?

  • A12753–I
  • B7454+Xe
  • C7453–I
  • D5374–I
  • E12854+Xe

Q21:

What is the symbol for the ion with a 3+ charge, containing 24 electrons and 30 neutrons?

  • A5121Sc
  • B57273+Co
  • C54243+Cr
  • D24543+Cr
  • E54273+Co

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