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.
The number of protons in the nucleus determines the identity of the atom. For example all carbon atoms contain six protons, all gold atoms contain 79 protons, all lead atoms contain 82 protons. Two atoms with the same number of protons, but different numbers of neutrons are called isotopes.he number of protons in the nucleus determines the identity of the atom. For example all carbon atoms contain six protons, all gold atoms contain 79 protons, all lead atoms contain 82 protons. Two atoms with the same number of protons, but different numbers of neutrons are called isotopes.