Prime Minister-elect Tony Abbott is facing criticism from within the coalition ranks on the merits of his frontbench line-up.

Mr Abbott and his cabinet will be sworn in by Governor-General Quentin Bryce in Canberra tomorrow before the new government's first executive council meeting.

The appointment of only one woman - incoming Foreign Affairs Minister Julie Bishop - to the 19-member cabinet and six to the outer ministry and parliamentary secretary ranks, sparked immediate criticism.

Two coalition backbenchers, WA Liberal Dennis Jensen and Victorian Liberal Russell Broadbent, who both missed out on ministry appointments, have weighed-in to query the broader line-up.

Dr Jensen, a scientist, says it's strange Mr Abbott hadn't appointed a dedicated federal science minister for the first time since the 1930s.

Mr Broadbent recognised Mr Abbott had put stability first, but says the frontbench line-up was also a case of to the victor goes the spoils.