You need 2.5 moles of aluminum for an experiment. How many atoms of all of them is this

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons

Which element would mostly likely have an electron affinity measuring closest to zero

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.