The fire emoji represents a streak. A streak in snapchat is defined as three days in a row in which you and a friend snap eachother. The number next to the streak tells you how many consecutive days you and a friend have snapped eachother. The fire emoji streak will appear when you have snapped three days in a row. Once you have started a streak the goal is to keep the streak alive for as long as possible.
In an atom of gold, there are 79 protons and 79 electrons. The number of neutrons for gold may vary by isotope. In an atom of gold, there are 79 protons and 79 electrons. The number of neutrons for gold may vary by isotope.
Along with the four protons, the collision-induced reactions had removed anywhere from six to 15 neutrons, producing a range of gold isotopes from gold 190 (79 protons and 111 neutrons) to gold 199 (79 protons, 120 neutrons), the researchers reported in the March 1981 issue of Physical Review C.