Using the IUPAC numerical roots (0 = nil, 1 = un, 2 = bi, 3 = tri, 4 = quad, 5 = pent, 6 = hex, 7 = sept, 8 =

Example · Example 22

Q. Using the IUPAC numerical roots (0 = nil, 1 = un, 2 = bi, 3 = tri, 4 = quad, 5 = pent, 6 = hex, 7 = sept, 8 = oct, 9 = enn), derive the systematic IUPAC name and three-letter symbol for the element with atomic number 104.

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Step 1. Write the atomic number digit by digit: $104 \rightarrow 1, 0, 4$ .

Step 2. Replace each digit with its numerical root: $1 \rightarrow$ un, $0 \rightarrow$ nil, $4 \rightarrow$ quad.

Step 3. Join the roots in order and add the suffix '-ium': un + nil + quad + ium = Unnilquadium.

Step 4. Take the first letter of each of the three roots (u, n, q) to get the symbol Unq. …

Q.Using the IUPAC numerical roots (0 = nil, 1 = un, 2 = bi, 3 = tri, 4 = quad, 5 = pent, 6 = hex, 7 = sept, 8 = oct, 9 = enn), derive the systematic IUPAC name and three-letter symbol for the element with atomic number 104.