Question 23 of 23 University Science Books General Chemistry 4th Edition McQuarr

Question

Question 23 of 23 University Science Books General Chemistry 4th Edition McQuarrie. Rock Gallogly presented by Sapling Learning According to the Star Trek "Fifth Interstellar Geophysical Conference Standard" version of the periodic table, there are 140 known elements. In what group of the periodic table would you place element 117, "topaline" which is reported to have been discovered on Ganymede in 2021? group Select answer 1 (1A) 2 (2A) 13 (3A) 14 (4A) 15 (5A) f the symb 16 (6A) redict the formula of a compound that presumably would result from the reaction be 17 (TA) aline, and name the compound. Spelling counts! 18 (8A) formula name

Explanation / Answer

In periodic table:

Number of elements in 1st row - 2

Number of elements in 2nd row - 8

Number of elements in 3rd row - 8

Number of elements in 4th row - 18

Number of elements in 5th row - 18

Number of elements in 6th row - 32

Number of elements in tth row - 32

The elements atomic numbers of 18 (8A) group are 2, 10, 18, 36, 54, 86, and 118

The elemnts atomic numbers of 17 (7A) group are 9, 17, 35, 53, 85, and 117

So, the element with atomic number 117 belongs to 17 (7A) group.

Th name of elements with atomic number greater than 100 are derived directly from the atomic numbers using numerical roots and adding the suffix -ium.

Digit:                     0       1     2    3     4      5   6          7        8        9

Root:                   nil      un   bi   tri   quad      pent     hex    sept      oct      enn

Abbreviation:       n        u     b     t    q           p            h         s          o        e

The formula and name of the element with atomic number 117:

Formula: Uus

Name: Ununseptium

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