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What element has the number of protons 78?

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Platinum

How do you determine the number of protons in an element?

The atomic number of an element, i.e. the element's number on the periodic table is the also the number of protons that element has. For example, Oxygen is number 8 on the tab

Number of protons in an atom of an element?

Atomic Number is the number of protons in an atom

The number of protons in an atom of an element?

The number of protons in an atom of an element is the atomic number.

What is the number of protons in the element?

On the periodic table of the elements the number of protons is equal to the atomic number. EG: Hydrogen has 1 proton.

What is the element 54 protons 54 neutrons and 78 electrons?

  I think you meant "54 protons, 54 electrons, and 78 neutrons," because I don't think it's possible for any element to have such a high proton-electron different, especia

What element has the mass number of 78?

  THE ELEMENT WHICH HAVE ATOMIC MASS 78.96 IS SELENIUM OF 6TH GROUP WITH ATOMIC NUMBER 34 AND SYMBOL (Se)

What element has 55 protons and electrons with 78 neutrons?

cesium has 55 protons, 55 electrons, and 78 protons. glad I could help! :D

Platinum.

Platinum

Platinum.

What is the number of proton in the element iron?

In the element iron there are 26 protons. In the core there are 30 neutrons as well, and 26 electrons are circling around this core.

What element have 79 protons 78 electrons?

I am 99.9 sure it is Gold

What is the number of protons in the element Americium?

The number of protons in an element is given by its atomic number. Since americium's atomic number is 95, it has 95 protons.

What are the number of protons in the element tungsten?

The atomic number (element number) gives the number of protons. In the case of tungsten it is 74.

What is equal to the number of protons in an element?

The atomic number in an element is equal to the number of protons in an element. For example, Hydrogen has an atomic number of 1 and 1 proton.

How are the number of protons in an element determined?

Well... the element number defines the number of protons, and usually the electrons. the neutrons are determined with... i dunno :P I.E. hydrogen is 1. Therefor, in hydrogen