Windows has a Sound window that allows you to manage your computer's audio settings and devices. If you cannot hear sound when it should be playing, head to the Sound window and tell Windows to select the audio input device you are using. 1. Click the Start button and type mmsys.cpl..
The atomic number of lead is 82. That tells us that electrically neutral lead has 82 protons and 82 electrons. The three stable isotopes of lead are 206 Pb, 207 Pb, and 208â¦ Pb. These isotopes have 124, 125, and 126 neutrons per each atom, respectively.
Super-heavy element. The more protons an atom has, the higher its number on the periodic table. And with 115 protons, this new element earns the moniker super-heavy element.. For the sake of comparison, an atom of lead only has 82 protons.Gold has just 79.But you won't find a chunk of element 115 lying around anywhere.he newly formed element vanished quickly in a flash of radiation that scientists could measure. That flash, or fingerprint, confirmed the existence of an element with 115 protons at its center. That would give it the atomic number of 115 on the periodic table, the list of all elements known to humanity.