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H2O2 is a compound, and the concept of "valence electrons" applies to atoms but not to compounds. If the question is or should be intended to be, "How many valence electrons did the atoms in one formula unit of H2O2 have before they reacted to form the compound?", the answer is one from each hydrogen atoms and six from each oxygen atom, for a total of 14.
What else can I help you with?
How many valence electrons does zinc have?
Zinc has two valence electrons.
How many valence electrons does Aluminume have?
Aluminum has 3 valence electrons.
How many valence does electrons gallium have?
3 valence electrons
How many valence electrons does led have?
Lead has 4 valence electrons.
How many valence electrons does arsencis have?
Arsenic has 5 [valence electrons] in them.
How many valence electrons does indium?
Indium has 3 valence electrons.
How many valence electrons are there argon?
8 valence electrons- 1s22s2p63s2p6
How many valence electrons does zinc have?
Zinc has two valence electrons.
How many valence electrons does Bi have?
5 valence electrons.
How many valence electrons does Aluminume have?
Aluminum has 3 valence electrons.
How many valence electrons Be have?
Beryllium has two valence electrons.
How many valence does electrons gallium have?
3 valence electrons
How many valence electrons are in an atom of aluminium?
There are 3 valence electrons in an atom of aluminium.
How many the valence electron of xenon?
There are no valence electrons.
How many valence electrons does led have?
Lead has 4 valence electrons.
How many Valence electrons now surround oxygen?
6 Valence Electrons
How many e- is valence electrons?
Valence electrons are placed in the outermost shell of electrons.
