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Q: What does a number before an element mean biology?
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In biology what does the prefix pro mean?

forward or before. I think its the same for biology.


What does a number of protons for an element mean?

The atomic number number of an element, and the magnitude of the positive electrical charge on a nucleus of the atoms of the element.


What is the top number mean in each element?

The top number in each element means the number of protons and electrons in the atom of that element.


What element number is nitrogen?

Do you mean "What element # is nitrogen?" because the answer to that is 7.


What does z mean in physics?

Z means the number of protons in an atom of an element, which is the element's atomic number.


What is the period number of the element nickel?

you mean atomic number and it is 28


What metallic element has the number 48?

if you mean atomic number then the answer is cadmium.


The number of protons in its nucleus mean?

The number of protons in the nucleus identifies the element. It is like a fingerprint for that element. No other element will have that same number of protons. As soon as the number of protons in the nucleus changes, so does the identity of the element change.


What does the expression mean atomic number?

"Atomic number" is a characteristic of a chemical element and equals the number of protons in each nucleus of an atom of the element.


What does an elemts atomic number mean?

The atomic number is the number of protons and electrons in the element.


What do the numbers under the letter mean on the periodic table?

That is the Atomic Number. The atomic number of an element is equal to the number of protons in the nucleus of an atom of the element.


What does the number 52 mean?

Tellurium is a metal element. atomic number of it is 52.