answersLogoWhite

0


Best Answer

The number of electrons is simply the same as the atomic number, assuming the compound or element is neutral (not positive or negative). To find the number of neutrons, take the Atomic Mass and subtract atomic number. The number of electrons is simply the same as the atomic number, assuming the compound or element is neutral (not positive or negative). To find the number of neutrons, take the atomic mass and subtract atomic number.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

13y ago

If the atom is neutral, the number of electrons is the same as the atomic number. If the atom is an ion, the number of electrons is the atomic number minus the charge on the ion; this means negatively charged ions have more electrons than their corresponding neutral atoms and positively charge ions have fewer electrons than their corresponding neutral atoms.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the formula used to calculate the number of electrons when only the atomic number is given?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Why do you calculate the number of electrons by the atomic mass and number?

because an atomic number is the same as the number of electrons in an atom (not ion)


What is the formula for atomic mass?

number of electrons


What is Formula for atomic mass?

number of electrons


How do you calculate the atomic mass?

the Atomic Mass number is the number of protons/electrons in an atom


How you calculate the atomic mass?

the Atomic Mass number is the number of protons/electrons in an atom


How do you calculate the atomic mass number?

the atomic mass number is the number of protons/electrons in an atom


What is the formula to get the number electrons?

The number of electrons is the same as the number of protons or the atomic number. If the element is an ion of e.g O+2, you would take away 2 from the atomic number and if it is O-2, you would add two electrons


How do calculate the number of electrons in neutral atom poses?

Look up the atomic number of the element. The atomic number is the number of protons, in a neutral atom this is the same as the number of electrons.


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

atomic # = protons atomic mass - atomic number = neutrons atomic # - charge = electrons


Can you use the atomic number and atomic mass to calculate the number of each subatomic particle?

atomic number = number of protons = number of electrons atomic mass = mass of protons + mass of neutrons


How do you calculate the number of protons?

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


How do you find electrons?

you can find electrons by subtract the atomic number and atomic mass.