Sc is a 3d element. It has 21 protons and 21 electrons.
12 , 12 , 12
A helium atom has 2 protons, 2 neutrons, and 2 electrons.
Neutrons: 6 Protons: 6 Electrons:6
The normal helium atom has two protons and two neutrons in the nucleus, and two electrons in the "shell".
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.
protons and nuetrons are equal to no. of electrons present in atom
26 nuetrons, 22 electrons, and 22 protons
20 protons, 20 electrons, and usually 20 neutrons
2 of each
12 , 12 , 12
Argon has 18 electrons and protons...Neutrons is 22
5 protons 8 neutrons try it
Oxygen has: 8 neutrons 8 protons (8 electrons)
A helium atom has 2 protons, 2 neutrons, and 2 electrons.
Neutrons: 6 Protons: 6 Electrons:6
The atom had:17 Protons18 Neutrons and17 Electrons(double-checked)
Copper has 29 protons, that is why it has the atomic number of 29. In addition, copper has 29 electrons and 35 neutrons.