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Any atom with 4 protons is an atom of beryllium. If the atom is neutral, it must also have 4 electrons. However, 5 neutrons specifies an isotope, specifically Be-9, rather than an element as such.

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What is the number of protons neutrons and electrons for Helium?

protrons=2 electrons=2 neutrons=2


What element has 4 protons a 4 neutrons?

berylium has 4 protons. It has 4 electrons too.


What element has as many electrons as it has neutrons?

There are particular isotopes that have similar number of electrons and neutrons. Some of these isotopes include hydrogen-2, helium-4, carbon-12 and nitrogen-14.


What element has 4 electrons 5 protons and 4 neutrons?

Be- Beryllium


What element has 2 electrons 3 protons and 4 neutrons?

There is no such element: an element is neutral, so it has equal numbers of protons and electrons.Impossible:2 protons 4 neutrons and 3 electrons is the IMpossible He-1 isotope with mass number 6 (=2p+4n). Helium does not accept electrons because it is noble.Possible:2 protons 4 neutrons and 2 electrons is (elemental) Helium, isotope with mass number 6 (=2p+4n)3 protons 4 neutrons and 3 electrons is (elemental) Lithium


How many protrons and neutrons does lithium have?

Lithium has 3 protons and typically 4 neutrons in its nucleus.


How many protons neutrons electrons does berylluim have?

be is a s block metal element. It contains 4 protons and 4 electrons.


What element has 2 electrons 3 protons 4 Neutrons?

There is no such element: an element is neutral, so it has equal numbers of protons and electrons.Impossible:2 protons 4 neutrons and 3 electrons is the IMpossible He-1 isotope with mass number 6 (=2p+4n). Helium does not accept electrons because it is noble.Possible:2 protons 4 neutrons and 2 electrons is (elemental) Helium, isotope with mass number 6 (=2p+4n)3 protons 4 neutrons and 3 electrons is (elemental) Lithium


What is the mass of an element with 4 protons 6 electrons 3 neutrons?

The mass of the isotope 7Be is 7,01692983(11) u. The isotope 7Be has 4 protons, 3 neutrons and 4 electrons (not 6).


What is the element that has 4 protons and 4 electrons and 3 neutrons?

It could possibly be a stable isotope of Beryllium


What element has four protons four electrons and five neutrons?

There are too many electrons. This would be a negative ion of lithium-6 (stable but less common isotope) that does not occur naturally. The element with 3 electrons, 3 protons, and *4 neutrons* is lithium-7, the most common isotope. It forms a stable positive ion (2 electrons).


How many protons neutrons electrons are found in the beryllium atom?

All beryllium atoms have 4 protons and 4 electrons. The number of neutrons is characteristic of a particular isotope, not of beryllium as a whole, and may be determined by subtracting 4, the number of protons, from the mass number of the isotope.