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What is the symbol for 2 electrons and 2 protons?
Number protons equal to atomic number. So the element is Helium
What atom contains 2 protons and 2 electrons?
helium
How many protons and electrons does the element Helium have?
One atom of helium contains 2 protons and 2 electrons. The most abundant isotope of helium, helium-4, has 2 neutrons. The other, rare isotope of helium, helium-3, has 1 neutron. (Source: Wikipedia)
How many of each of the elementary particles are contained in the helium atom?
A helium atom consists of 2 protons, 2 electrons and 2 neutrons.
What is helium's number of electrons?
Helium has 2 protons and 2 electrons.
What atom contains 1 electron and 2 protons?
None, for it to be an atom it has the have the same number of electrons and protons. Something with 1 electron and 2 protons would theoretically be a helium ion but helium does not form ions.
How many protons and neutrons and electrons does helium-have?
Protons: 2 neutrons: 2 electrons: 2 Helium-3: 2 protons, 1 neutron, 2 electrons Helium-4: 2 protons, 2 neutrons, 2 electrons
How many protons nuetrons and electrons does a helium at have?
A helium atom has 2 protons, 2 neutrons, and 2 electrons.
How many protons and nuetrons are in helium?
The normal helium atom has two protons and two neutrons in the nucleus, and two electrons in the "shell".
List the number of protons electrons and neutrons has helium?
Helium has 2 protons and 2 electrons. He-3 and He-4 isotopes have 1 and 2 neutrons.
What element has 2 electrons (neutral atom )?
Helium has 2 protons, 2 neutrons, and 2 electrons.
Calculate the number of protons electrons and neutrons in helium-6?
Helium-6 has two protons and electrons and four neutrons.
