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you look at either the atomic number or the number of electrons. That's the number of protons.

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14y ago

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How do you calculate the protons from the atomic number?

The atomic number is the number of protons.


The mass number is used to calculate the number of what?

The number of protons and neutrons in the nucleus


The mass number is used to calculate the number of?

protons and neutrons in an atom. It is the sum of protons and neutrons in the nucleus of an atom.


How do you calculate the mass number?

mass number= protons+nutrons


What is the mass number and how do you calculate it?

The mass number is the total number of protons and neutrons in an atom's nucleus. To calculate the mass number, simply add the number of protons and neutrons together in the nucleus of an atom.


How do you calculate subatomic particles in isotopes?

To calculate the number of subatomic particles in isotopes, you need to know the atomic number (number of protons) and mass number (sum of protons and neutrons) of the isotope. Subtract the atomic number from the mass number to find the number of neutrons. The number of electrons will be equal to the number of protons if the atom is neutral.


How do you calculate how many protons are in an atom?

The atomic number (1 to 114) in the periodic system is equal to the number of protons.


How do you calculate the atomic number of an element?

It is the number of positely charged nuclear particles ( protons ).


How do you calculate the number of protons neutrons and electrons of an atom?

The charge of an ion can be calculated by adding up the protons and subtracting the electrons. When oxygen with 8 protons has 8 electrons it is neutral, when it has 7 electrons it is positively charged.


How do you calculate the number of proton neutron and electron using atomic no and mass no?

To calculate the number of protons in an atom, use the atomic number (Z), which represents the number of protons. The number of neutrons can be calculated by subtracting the atomic number from the mass number (A = Z + N). Electrons are the same as the number of protons in a neutral atom.


How do you calculate how many protns are in silicon?

It is not something you calculate. The number of protons in an atom can be determined by looking up its atomic number on the periodic table. In the case of silicon, the atomic number is 14, so it has 14 protons.


How do you calculate protons and in ions?

The protons are always the same as their matching atomic number. This is also true of ions. Protons never change.