May someone help me unscramble these.

-unnecessary comments will be reported.

Potassium

Explanation:

The symbol for the element with a mass number of 169 is Tm for Thulium.

The letters to unscramble are S, Si, Tm, P, Au, and o.

The mystery element is Potassium.

Hope that helps.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.