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#1 is Hydrogen

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15y ago

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Related Questions

Can elements be ordered by there atomic number?

Yes, elements can be ordered by their atomic number. The atomic number of an element corresponds to the number of protons in an atom's nucleus, and elements are arranged in the periodic table from lowest to highest atomic number.


Which element has the lowest atomic number transuranium?

The element with the lowest atomic number among the transuranium elements is neptunium, with an atomic number of 93. It is the first transuranium element produced synthetically in a laboratory setting.


This element has the lowest atomic number of Group 16 elements?

Oxygen I believe


Which element has the lowest atomic number of group 16 elements?

Oxygen is the element having atomic number 8. It is present in group-16.


What are the most reactive elements?

That would be the element with the highest atomic number but the lowest number of valence electrons.


Which metal has the lowest atomic number?

Hydrogen is a non metal element. Atomic number of it is 1. It is the element with lowest atomic number.


What is the first radioactive element number?

Of elements that have no stable isotopes, technetium has the lowest atomic number, which is 43.


What is the lowest atomic number actinide?

The lowest atomic number actinide is actinium, with the atomic number 89.


This element has the lowest atomic number in group 16?

Nitrogen


What family of elements has the lowest atomic radius?

The noble gases have the lowest atomic radius among all the elements. This is because they have a full outer electron shell, leading to minimal atomic size.


Lowest atomic number actinide?

Hydrogen is a none metal element. atomic number of it is 1.


What element has the lowest atomic number in period 3?

The element with the lowest atomic number in period 3 is sodium (Na) with an atomic number of 11.