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carbon is a negatively and positively charged ion since it can gain or lose 4
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Negative ions form when atoms-blank-valence electrons?
Negative ions form when atoms GAIN valence electrons.
Is valence the same as oxidation number?
Yes, but only if its positive. If its negative, it shows the number of electrons need to become stable.
Why do some atoms form positive ions and others form negative ions?
It is a matter of how full an atom's outer or valence shell of electrons is. For most atoms, the most stable setup is one with a full shell of 8 valence electrons, and an atom will gain or lose electrons to achieve this. For atoms with close to 8 valence electrons, such a chlorine (7 valence electrons, it is generally easier to gain electrons and thus become negatively charged. For atoms with few valence electrons, such as sodium (1 valence electron), it is easier to lose electrons and go down to the next lowest shell, which is already full.
What is the charge of valence electrons of calcium?
Yes, calcium has valence electrons - two, in fact (it is a divalent chemical element).
What is a positive valence?
There is no such term used in science. However, in psychology the term refers to non-verbal communication received in a positive manner (a smile is a good example).
What are the electrons in the outmost shell of an atom called?
the electrons in the outermost shell of an atom are considered to be the valence electrons.
What are positive and negative ions called?
Positive ions are called cations. Negative ions are called anions.
What is same about the positive ions and negative ions?
They both are ions and both have shared valence electrons
What is happening to valence electrons in a purely ionic bond?
In the atom which will form the positive ion, the valence electrons is/are being given up and lost to the reaction medium (environment). In the atom which will form the negative ion, the valence electrons lingering in the reaction medium will be attracted to the proton of the negative ion and is taken in by the negative ion.
Negative ions form when atoms-blank-valence electrons?
Negative ions form when atoms GAIN valence electrons.
Is valence the same as oxidation number?
Yes, but only if its positive. If its negative, it shows the number of electrons need to become stable.
What can be a negative for electrons or a positive for protons?
The charge of electrons is negative and of protons is positive.
Are metals positive or negative ions?
Metals are positive ions. Everything on the left side of the periodic table is. Basically every element that has 4 valence electrons or less is a positive ion.
Why electrons move from anode to cathode?
The words are all arbitrary - - - BUT electrons have a "negative" charge and are attracted to a positive voltage. (Opposites attract.)
What atom has 6 valence electrons and 10 core electrons?
Sulfur. It has six valence electrons. These six electrons plus the ten core electrons, 16, the atomic number (number of electrons or the number of protons [they are an equal amount because the positive and negative charges have to cancel each other out]). It is sulfur.
What charge does an ion have?
An ion is an atom or molecule which has lost or gained one or more valence electrons, giving it a positive or negative charge.
Why do some atoms form positive ions and others form negative ions?
It is a matter of how full an atom's outer or valence shell of electrons is. For most atoms, the most stable setup is one with a full shell of 8 valence electrons, and an atom will gain or lose electrons to achieve this. For atoms with close to 8 valence electrons, such a chlorine (7 valence electrons, it is generally easier to gain electrons and thus become negatively charged. For atoms with few valence electrons, such as sodium (1 valence electron), it is easier to lose electrons and go down to the next lowest shell, which is already full.
