SM Top properties at LHC: top charge, Branching Ratio and top pair production associated with gauge bosons

In this contribution, we review some of the properties of the top quark in LHC measurements by the CMS and ATLAS Collaborations using pp collisions at 7 TeV. Firstly, measurements of two intrinsic properties of the top quark are revisited: its charge and branching ratio. Then, the first measurements of associated production of top pairs with electroweak gauge bosons W, Z and photons are presented. Associated production cross-sections provide information on the structure of the electroweak couplings to top quarks. All measurements are consistent with the expectations from the standard model top properties.