Experimentally, I'm not sure, but I know you can look at your periodic chart, the large number over the symbol of each element is teh number of protons in that element.
The number of protons is the "atomic number", so you look that up in the periodic table.
An atom with 7 protons is a nitrogen atom. Protons determine the element of an atom, so an element with 7 protons is always nitrogen, which has the atomic number 7.
Each atom of Rubidium (Rb) has 37 protons.
The number of protons in an atom determines its identity as a specific element. Changing the number of protons would change the element. Neutrons and electrons can be added or removed without changing the identity of the element since they do not affect the element's chemical properties.
Germanium has 32 protons.
The number of protons determine what element it is, the number of neutrons determine what isotope it is.
Calcium has 20 Protons. You can determine the amount of Protons in an Element by checking the top number of an element. This is called the Atomic number. Calcium has 20 protons
The number of protons determine the atomic number of an element. There are the same amount of protons as electrons in a regular element.
The protons of an element determine the atomic number, also known as the proton number. Do not confuse this with mass number which is the number of protons and neutrons.
The number of protons determine the atomic number of an element. There are the same amount of protons as electrons in a regular element.
The identity of an element is determined by the number of protons.
The number of protons is the "atomic number", so you look that up in the periodic table.
The atomic number is equal to the number of protons.
Protons determine which element an atom is.
Number of protons or the atomic number of an atom determines what is the element.
Inside of an atom there are protons and neutrons. The protons determine the element whereas the neutron can determine if it is an isotope of that element. Of course there are many smaller particles inside of protons and neutrons like quarks and gluons and ... strings.
An atom with 7 protons is a nitrogen atom. Protons determine the element of an atom, so an element with 7 protons is always nitrogen, which has the atomic number 7.