The City Council shall convene at its regular place of meeting at 8:00 p.m. on the first secular day succeeding any primary, general or special election and shall publicly canvass the results of such election and shall determine the vote upon all questions and propositions and declare whether the same have been adopted or rejected and what persons have been nominated or elected to the several offices. When only one person is to be elected to any one office at any election, then the two candidates receiving the highest number of votes for nomination to that office at the preceding primary election shall be deemed to have been nominated thereto and shall be the candidates and the only candidates whose names shall be placed on the ballot for that office at such election. When more than one person is to be elected to any office at any election, then the candidates equal in number to twice the number of persons to be elected to that office, receiving the highest number of votes for nomination to said office at the preceding primary election, shall be deemed to have been nominated thereto and shall be the candidates and only candidates whose names shall be placed on the ballot for said office at such election. At any election the person receiving the highest number of votes for any office to which one person only is to be elected shall be deemed to have been duly elected to that office. If more than one person is to be elected to any office, then the persons equal in number to the number to be elected to that office, receiving the highest number of votes, shall be deemed to have been duly elected thereto. The Clerk shall notify within five days, in writing, by certified mail, the successful nominees or candidates of their nomination or election.