79
79 protons, 79 electrons and 118 neutrons. a neutral gold atom has 79 protons about 121 neutrons and 79 electrons
The elements in the Periodic Table are arranged in order by atomic number. The atomic number of gold (Au) is 79. Atomic number is the number of protons in the nucleus of the atoms of that element. So gold atoms have 79 protons in their nuclei. In a neutral atom, the number of electrons is equal to the numbers of protons. So a neutral gold atom has 79 electrons.
An atom of chlorine has 17 protons.
protons
The atom must have 8 electrons to make it have a neutral charge
If a neutral atom of sodium has 11 protons, it will have 11 electrons also.
A neutral atom with 12 protons will have 12 electrons in order to balance the positive charge from the protons.
8 protons
Any neutral atoms has the same number of electrons as protons, and any atom has a number of protons equal to the difference between its mass number and neutron number. Therefore, this atom has 197 - 118 = 79 electrons.
The number of electrons should = the number of protons.
There are 6 protons in a neutral atom of Carbon 13
An atom with 35 protons is iodine, which is a neutral atom. In a neutral atom, the number of electrons equals the number of protons, so it also has 35 electrons. Therefore, an atom with 35 protons has 35 electrons.