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Q: Which element has the smallest atomic mass What is its atomic number?
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What is the element with the smallest atomic mass?

Hydrogen


Which element had the smallest atomic mass?

Hydrogen


What element has the smallest atomic mass?

Hydrogen.


What element had the smallest atomic mass?

Hydrogen.


What is the difference between the atomic number and the atomic mass?

Atomic mass is the mass of 1 mole of the element. Atomic number is the number of protons the element has


What is the atomic number and the mass number of an element with 20 atomic number and 23 mass number?

Sodium is a metal element. Atomic mass number of it is 23.


How are atomic mass and atomic number different?

Atomic number is the number of protons in the nuclei of the atoms of an element. Atomic number is unique to each element. Atomic Mass is the combined mass of the protons, neutrons, and electrons in an atom of an element.


How are the atomic mass and the atomic number different?

the atomic mass is the number of protons and neutrons in an atom of an element and the atomic number is the number of protons of an atom of an element.


The Atomic and mass number for calcium?

Calcium is a metal element. Atomic mass of it is 40.


Which element has the smallest atom?

hydrogen This is because it has the smallest Relative Atomic Mass =]


What is the atomic mass the same as?

The Atomic Mass is equal to the number of protons and electrons that an element has.


What has the lowest atomic number of any metal?

Bromine, because Bromine has an atomic mass of only 5.