12,13, and 26
protons and nuetrons are equal to no. of electrons present in atom
Electrons, protons, and nuetrons. electrons are outside the nucleus, and protons and nuetrons are inside the nucleus.
Aluminum has 13 protons and approximately 14 neutrons.
Look at the atomic number. That will be the number of protons and electrons; subtract that number from the atomic mass (rounding down) and you'll have the number of neutrons.
Number of Protons & Electrons: 47 Number of Nuetrons: 61 http://www.purestcolloids.com/silver-atom-structure.htm
Copper has 29 protons, that is why it has the atomic number of 29. In addition, copper has 29 electrons and 35 neutrons.
2 protons, 2 electrons. He-3 and He-4 isotopes have 1 and 2 neutrons respectively
Silver has 47 protons and electrons. The number of neutrons in a silver atom can vary due to isomerism. However, the average value is about 61 neutrons.
26 nuetrons, 22 electrons, and 22 protons
Protons, nuetrons, and electrons
20 protons, 20 electrons, and usually 20 neutrons
Xenon has 54 protons, 77 neutrons, and 54 electrons. The number of protons determines the element's chemical properties, while the total number of protons and neutrons determines the atomic mass. Electrons equal the number of protons in a neutral atom.