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Helium, number two on the Periodic Table of elements. Nothing else has two protons, for to remove a proton or add a proton is to change the element.

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Q: What elements have 2 protons in the nucleus?
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Related questions

How do you find the number of protons in an elements nucleus?

The number of protons in an elements nucleus is the same number at the atomic number.


What is the atomic number of an elements based on?

The number of protons in the nucleus of an atom.


How do you identify a compound or an element?

Elements are pretty much defined by the number of protons in the nucleus. This number (the atomic number) defines the element. All the different elements have different numbers of protons in their nucleus.


In periodic table of elements it is equal to the number of protons in the nucleus.?

The atomic number is equal to the number of protons in the nucleus.


Name 3 elements?

Protons,Neutrons and Nucleus


Why elements share similar characteristics?

All the elements have a nucleus. The nucleus contains protons and neutrons. Electrons move around the nucleus.


An element is determined by the number of?

An element can be identified by the number of protons in the nucleus of its atoms.


What element is the number of protons and neutrons in the nucleus?

All elements have neutrons and protons within the nucleus.


Elements are determined by the number of?

They are determined by the number of protons in their nucleus.


Which elements atomic nucleus contains 11 protons?

Sodium


What is number of protons in a nucleus is?

The number of protons in a nucleus depends on the specific atom. In the Periodic Table of elements, the number of protons a given element has is equal to its atomic number.


What is a number of protons in a nucleus?

The number of protons in a nucleus depends on the specific atom. In the Periodic Table of elements, the number of protons a given element has is equal to its atomic number.