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The atomic number of helium (He) is 2. The atomic weight of He is 4.002602 grams per mole.
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∙ 8y ago
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∙ 14y agoHelium normally has 4 nucleons, consisting of 2 protons and 2 neutrons. Other isotopes are possible.
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∙ 11y agoThe sub atomic particles are protons, electrons and neutrons. Helium has 2 protons, 2 electrons.
He-3 and He-4 isotopes have 1 and 2 neutrons respectively.
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∙ 9y agoWiki User
∙ 14y agoHelium's atomic number is 2.
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Is hydrogens atomic number greater than heliums?
Hydrogen has atomic number 1 whereas helium's is 2.
What is heliums number of valence electrons?
Helium has 2 valence electrons.
What is an example of Atomic Number?
Atomic number= number of protons. Hydrogen atomic number=1
What is the atomic number of F plus the atomic number of Na?
The atomic number of fluorine is 9.The atomic number of sodium is 11.
What does the atomic number repersents?
The atomic number is equal to number of protons in the atomic nucleus.
Is hydrogens atomic number greater than heliums?
Hydrogen has atomic number 1 whereas helium's is 2.
What is heliums number of valence electrons?
Helium has 2 valence electrons.
What is heliums mass number?
Most helium has a mass number of 4. The rare 3He isotope has a mass number of 3. The mass number is the integer total of protons and neutrons for a given isotope. For example radioactive carbon-14 has a mass number of 14, while carbon-12 (the most common stable form) has a mass number of 12.
What is the number of protons in the neucleus called?
the answer is that it is called a atomic number.
Atomic number in the atomic nucleus?
The atomic number is equal to the number of the protons in the atomic nucleus.
What is heliums oxidation number?
Helium does not form any known stable compounds, and thus it is nearly always in the 0 oxidation state.
The number of neutrons in an atom can be found by subtracting the atomic number from the?
Atomic weight in atomic mass units = the number of protons + the number of neutrons. The number of protons is your atomic number. Subtract that from the atomic weight for the number of neutrons.
This element has an atomic number that is double the atomic number of silicon?
this elemnt has an atomic number that is double the atomic number of silicon?
What is the number of neutrons in an atomic number?
Subtract the atomic number from the atomic weight.
What element is not bonded in nature?
Synthetic ElementsQuasi-synthetic elements:Technetium, atomic number 43Promethium, atomic number 61Astatine, atomic number 85Francium, atomic number 87Neptunium, atomic number 93Plutonium, atomic number 94Transuranium elementsAmericium symbol Am, atomic number 95Curium symbol Cm, atomic number 96Berkelium symbol Bk, atomic number 97Californium symbol Cf, atomic number 98Einsteinium symbol Es, atomic number 99Fermium symbol Fm, atomic number 100Mendelevium symbol Md, atomic number 101Nobelium symbol No, atomic number 102Lawrencium symbol Lr, atomic number 103Transactinide elements Rutherfordium symbol Rf, atomic number 104Dubnium symbol Db, atomic number 105Seaborgium symbol Sg, atomic number 106Bohrium symbol Bh, atomic number 107Hassium symbol Hs, atomic number 108Meitnerium symbol Mt, atomic number 109Darmstadtium symbol Ds, atomic number 110Roentgenium symbol Rg, atomic number 111Copernicium symbol Cn atomic number 112Provisional names of Recently observed synthetic elements:Ununtrium symbol Uut, atomic number 113Ununquadium symbol Uuq, atomic number 114Ununpentium symbol Uup, atomic number 115Ununhexium symbol Uuh, atomic number 116Ununseptium symbol Uus, atomic number 117.Ununoctium symbol Uuo, atomic number 118
What is an example of Atomic Number?
Atomic number= number of protons. Hydrogen atomic number=1
What is an example of an atomic number?
Atomic number= number of protons. Hydrogen atomic number=1
