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Are valence electrons the number of protons?
Only for hydrogen and helium are these two numbers the same. All other elements have at least two non-valence electrons, and the total number of electrons must be equal to the number of protons. Therefore, in all elements except hydrogen and helium, the number of valence electrons is less than the number of protons.
Do protons and electrons always have the same quantity?
No. In an ion, the number of protons and number of electrons are different.
Do valence electrons determine atomic number of the element?
No, the valance electrons determine the charge, the atomic number is determined by the number of protons. Generally, electrons are equal to protons, but in ions it is different, so use protons.
How many protons electrons and valence electrons does na have?
Sodium's atomic number is 11. To be neutral then, it must have 11 protons and 11 electrons. Since sodium is in group 1, it has 1 valence electron.
How many protons and valence electrons does oxygen have?
Oxygen's atomic number is 8. That means it must have 8 protons and 8 neutrons to be electrically neutral. Out of those 8 electrons, 6 of them are valence electrons.
Does valence electrons equal the number of protons?
Wrong. Electrons (not valence electrons) are equal to protons and atomic number.
Is the number of valence electrons equal to the number of protons?
No, the number of total electrons is equal to the number of protons.
What is the number of electrons protons neutrons electron shells and valence in barium?
It has 56 electrons, 56 protons, 81 electrons, and 6 valence rings, with 2 valence electrons.
Does valence electrons equals number of protons?
YES!!!!
What is the number of protons in the nucleus or the number the electrons in the energy levels called?
valence electrons
Are valence electrons the number of protons?
Only for hydrogen and helium are these two numbers the same. All other elements have at least two non-valence electrons, and the total number of electrons must be equal to the number of protons. Therefore, in all elements except hydrogen and helium, the number of valence electrons is less than the number of protons.
Does the valence electrons equal the number of protons?
Rarely. The number of valence electrons of an element depends on it's position on the periodic table. Any given element can have between 1-8 valence electrons. The number of valence electrons increases left to right on the periodic table, while the number of protons, which determine the atomic mass and identity of an element, increase in general. Therefore the number of valence electrons can only equal the number of protons at the 8th element and below (neon).
What is the valence number for helium?
He has 2 valence electrons. Look on a periodic table. It will show He only has 2 protons and the number of protons and electrons is equal. It is an exception to the rule of group numbers corresponding to valence numbers.
How many protons sodium element has?
the number of protons is the atomic number, which for sodium is 11. The number of electrons in neutral sodium atom is 11 and these are in the following shells:- 1st valence = 2 electron 2nd valence = 8 electrons 3th valence = 1 electrons
Do protons and electrons always have the same quantity?
No. In an ion, the number of protons and number of electrons are different.
Do valence electrons determine atomic number of the element?
No, the valance electrons determine the charge, the atomic number is determined by the number of protons. Generally, electrons are equal to protons, but in ions it is different, so use protons.
How do you determine the valence electrons of aluminium?
In the neutral atom of a chemical element number of electrons= number of protons=atomic number.
