Use the periodic table to answer the question.
An illustration shows the periodic table of elements with elements arranged in increasing order of atomic number in 18 columns (groups) and 7 rows (periods). The electronegativity of elements increases from left to right, across a period. The hydrogen on the left is included in group with medium electronegativity. Also, fluorine is shown as element with highest electronegativity.
Based on patterns in the periodic table, which list shows the acids in order from strongest to weakest?
HCl, H2S, PH3
HCl, H 2 S, PH 3
HCl, PH3, H2S
HCl, PH 3 , H 2 S
PH3, H2S, HCl
PH 3 , H 2 S, HCl
H2S, PH3, HCl