answersLogoWhite

0


Best Answer

Atomic number means number of protons present in an atom. Atomic number= number of protons.

mass number = number of neutrons+ number of protons.

So if you subtract the number of protons you get neutrons and if you subtract neutrons you get protons.

mass number - protons= neutrons

Mass number - neutrons = protons.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

16y ago

To determine the number of protons, look at the atomic number. The number of electrons is also the atomic number.To find the number of neutrons subtract the atomic number from the Atomic Mass number.

This answer is:
User Avatar

User Avatar

Wiki User

7y ago

Number of protons = atomic number

Number of neutrons = atomic mass (rounded to the nearest whole number) minus the atomic number

Number of electrons in a stable element = number of protons

Number of electrons in an unstable element = atomic number minus the charge

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

Protons = Atomic Number,

Electrons = Protons,

Neutrons = Atomic Mass - Protons.

Electons give a negative charge

Protons give a positive charge

In general, the atom would have the same amount of protons and electons, so it is neutral.

This answer is:
User Avatar

User Avatar

Wiki User

11y ago

Atomic number = number of protons = number of electrons

Mass number = number of protons + number of neutrons

Number of neutrons (for an isotope !) = mass number - number of protons

Atomic weight: a mass expressed in relative atomic mass units (for an element)

Atomic mass: a mass expressed in relative atomic mass units (for an isotope)

This answer is:
User Avatar

User Avatar

Wiki User

12y ago

The atomic number = number of protons.

The Atomic mass = Protons + Neutrons.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you determine the number of protons electrons and neutrons present in an element by identifying its atomic and mass numbers from the periodic table?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What do electrons and neutrons and prontons have to do with the elementes in the periodic table?

Elements are made of one type of atom. Atoms are made of electrons, neutrons and protons


What are found in each element on the periodic table?

Electrons, protons, neutrons


How many protons neutrons and electrons are in elements?

Depends on the element. Check out the "Periodic Table".


Protons neutrons and electrons combine to form what?

Protons, neutrons, and electrons can form any type of atom on the Periodic Table of Elements.The amount of protons determine what type of element an atom is.If the number of neutrons differ from the stable amount it should have, the atom is known as an isotope.If the amount of electrons differ from the amount of protons, the atom is known as an ion.


What information can you gather knowing the atomic number and mass of an element?

If you know the atomic no. and atomic mass, then the no. of electrons, no. of protons and no. of neutrons can also be determined. Atomic No.=No. of electrons = No. of protons. No. of neutrons=Atomic mass-Atomic no. Also, by no. of electrons you can determine its valency and the no. of valence electrons.


Are the elements of the periodic table made up of cells?

No they are made up of Protons, Neutrons and Electrons.


Protons electrons and neutrons are the three main parts of these?

Protons, electrons, and neutrons are the three main parts of atoms. In an atom, the nucleus contains the protons and neutrons, the electrons are found in shells around the nucleus. On the periodic table, the atomic number tells you the number of protons of an element.


How many neutrons and electrons are in hydorgen?

Hydrogen contains 1 electron, 1 proton, and 0 neutrons. It is on the periodic table represented by the letter H.


How many neutrons does cesuim 133 have in isotopes?

54 protons 79 neutrons 54 electrons


Why is the periodic table of elements an important tool for scientists?

It tells the amount of protons neutrons and electrons are in an atom.


How do you determine how many electrons are in an energy level?

By the [use and] study of the Periodic Table.


The parts of an atom?

Well there is protons, electrons, and neutrons. Protons and neutrons are in the nucleus and the electron i outside revolving around it. The number of them depends on what periodic element specifically.