What is the number protons in the nucleus?

Answer 1

The number of protons in the nucleus is equal to the atomic number of that atom. Said another way, the atomic number of any element is the number of protons in the nucleus of any atom of that element.

It might be helpful to consider some examples, and if we look at Mercury, we'll see it has an atomic number of 80. All atoms of mercury have 80 protons in them. Aluminum has the atomic number of 13, so all atoms of it have 13 protons in them. Uranium, which has atomic number 92, has 92 protons in all of its atoms.

The number of electrons and neutrons in a given atom of a given element can vary for a number of reasons, and these characteristics are considered separately. The number of electrons in any atom will match the number of protons in the nucleus of that atom only if the atom is a neutral one. Some atoms loan out or borrow electrons, and then they become what are called ions. The number of neutrons can vary, too, and we use the term isotope to talk about atoms of a given element having different neutron counts.
The atomic number indicates the number of protons in an atom's nucleus.
The number of protons in the nucleus is the atomic number of the atom.

Answer 2

You can find the number of protons by looking at the Periodic Table. The atomic number on the Periodic Table on that specific element tells how many protons and electrons are there.

For example, Beryllium has the number 4. That means there are 4 protons and 4 electrons.

Answer 3

every element has a different number of protons and neutrons (the number of protons changes the element and an irregular number of neutrons turn it to an isotope)

Answer 4

Depends on what element

Answer 5

It is different for every atom.

Answer 6

Depends on the element