What is the IUPAC name and symbol for an element with atomic number 119?

📚 Chapter: Classification of Elements and Periodicity in Properties

📘 IUPAC Temporary Name

🔵 Step 1: Atomic Number = 119

For elements whose discovery and official naming have not yet been established, IUPAC uses a systematic temporary naming system based on the digits of the atomic number.

Z = 119

🟢 Step 2: Convert the digits

The IUPAC numerical roots are:

Digit	Root
1	un
1	un
9	enn

Combining the roots gives:

un + un + enn + ium

Ununennium

🎬 3D-Style Atomic Number Animation

The digits of 119 are converted into IUPAC numerical roots.

1 1 9

↓

Un + un + enn + ium

🟣 Step 3: Symbol

The systematic temporary symbol is formed from the initial letters of the numerical roots.

Un + un + enn + ium → Uue

Thus, the temporary systematic designation is:

Ununennium (Uue)

Atomic Number = 119

⚠️ Important Note

The name Ununennium (Uue) is the IUPAC systematic temporary name used for element 119. A permanent official name and symbol would be assigned after the element is successfully discovered, verified and formally named.

📝 MCQ Practice

Q1. What is the systematic IUPAC name for element with atomic number 119?

A) Ununtrium

B) Ununennium

C) Ununium

D) Unbinilium

✅ Show Answer

Answer: B) Ununennium

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Q2. What is the systematic symbol for element 119?

A) Uun

B) Uue

C) Une

D) Uun

✅ Show Answer

Answer: B) Uue

✅ Final Answer

The systematic IUPAC name for the element with atomic number 119 is:

Ununennium (Uue)

It is a temporary systematic name based on the digits of the atomic number.

🎯 Exam Point

Atomic Number → 119

Systematic Name → Ununennium

Systematic Symbol → Uue