Want this question answered?
79 protons and electrons 118 neutrons
2 protons 2 electrons 2 neutrons 2 protons 2 electrons 2 neutrons don't know
It has 2 protons ,2 neutrons & 2 electrons.
No, there are actually 2 protons and 2 neutrons in the helium-4 isotope. The number of protons determines the element, while the sum of protons and neutrons gives the atomic mass of an isotope.
He is helium: it has 2 protons, 2 electrons and 2 neutrons, only less than 0.001% of He has only 1 neutron (He-3 isotope)
79 protons and electrons 118 neutrons
2 protons 2 electrons 2 neutrons 2 protons 2 electrons 2 neutrons don't know
10 protons, 12 neutrons
2 protons and 2 neutron
It has 2 protons ,2 neutrons & 2 electrons.
2 protons 2 neutrons 2 electrons
No, there are actually 2 protons and 2 neutrons in the helium-4 isotope. The number of protons determines the element, while the sum of protons and neutrons gives the atomic mass of an isotope.
He is helium: it has 2 protons, 2 electrons and 2 neutrons, only less than 0.001% of He has only 1 neutron (He-3 isotope)
The normal helium atom has two protons and two neutrons in the nucleus, and two electrons in the "shell".
Protons: 2 neutrons: 2 electrons: 2 Helium-3: 2 protons, 1 neutron, 2 electrons Helium-4: 2 protons, 2 neutrons, 2 electrons
Number of neutrons = Mass number - Number of protons = 4 - 2 = 2 neutrons
Helium has 2 protons, 2 neutrons, and 2 electrons.