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Except for ions, the number of electrons in an atom are equal to the number of protons. The atomic number will tell you the number of protons, and consequently the number of electrons in an electrically neutral atom.
In the case of an ion, adjust the number by the indicated charge; for example Na+1 will have 11 (the atomic number of Na) - 1 (since electrons have a negative charge, you subtract the charge) = 10 electrons.
Wiki User
∙ 12y ago
Wiki User
∙ 15y agoAtoms are neutral, meaning they have the same number of protons as electrons. The number of protons is called the atomic number (it is the little number on top of an element's symbol on the periodic table). So the atomic number tells us not only the number of protons, but also the number of electrons too (since they are the same amount).
Wiki User
∙ 12y agothe # of electrons and protons is the same as the atomic #
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How do you calculate number of electrons required for the reaction?
For each element, the number of protons it has is equal to the number of electrons it has. However, if the atom has a different amount of electrons, then the charge will tell you that. If the charge is negative (-) then that says how many electrons the atom has gained, and if the charge is positive (+) then that says how many electrons the atom has lost.
How many protons neutrons electrons and valence electrons are there in each atom in hno3?
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How many electrons in an atom of nitrogen?
A nitrogen atom has seven electrons.
How do you work out how many electrons in an atom?
An atom's atomic number is the number of electrons.
How many electrons are in an atom of elemental sodium?
The neutral atom of sodium has 11 electrons.
If you know how many electrons an atom has what else do you know about this atom?
Generally how many protons it has, therefore what type of atom it is (i.e. carbon, hydrogen etc.)
How many electrons does phosphorus atom have?
phosphorus have 15 electron because you know the atomic number to know electron
How do you calculate number of electrons required for the reaction?
For each element, the number of protons it has is equal to the number of electrons it has. However, if the atom has a different amount of electrons, then the charge will tell you that. If the charge is negative (-) then that says how many electrons the atom has gained, and if the charge is positive (+) then that says how many electrons the atom has lost.
How many electrons does an atom potassium havew?
Finding the number of electrons in an atom is easy. You just have to know the atomic number of the element. The atomic number for Potassium is 19. That means Potassium has 19 electrons.
How many protons neutrons electrons and valence electrons are there in each atom in hno3?
you shold go at (about.com) to know about
How many electrons does a atom have?
The number of electrons depends on what type of atom it is.
How many electrons are in a atom of mecrury?
A Mercury atom has 80 electrons.
How many electrons in an atom of nitrogen?
A nitrogen atom has seven electrons.
How do you know how many covalent bonds an atom has?
The number of unpaired electrons in valence shell or numbers of electrons less then 8 in outermost shell of an atom give information about covalent bonds my be formed by an atom.
How do you work out how many electrons in an atom?
An atom's atomic number is the number of electrons.
A potassium atom has how many electrons?
The neutral atom of potassium has 19 electrons.
How many electrons does an atom of helium have atomic?
Helium atom has 2 electrons.
