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.
Gold Atom. I assume this is for a chemistry class or something, and are probably expected to determine this using molar mass and avogadro's number (6.022e23 atoms per mole) 1 mole of gold is 196.97 grams since 196.97 is the molar mass. A mole of anything, has 6.022e23 atoms (for elements) or molecules (for compounds) per 1 mole of whatever substance it is. You have 1 mole of gold. So just divide by how many atoms there are in that 1 mole to find the weight of 1 atom. 196.97/6.022e23.