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If its positive it tells u that it has that number of valence electrons.
If negative it tells you that it requires that number of electrons to make the valence electrons filled up/stable.
If you know which Ion it is, you know the number of valence electrons of the neutral Atom. It corresponds to the group in the Periodic Table, the element is in. For example: Mg. It's in group 2, so it has 2 valence electrons.
The oxidation number now tells you how many more or less electrons the atom has. For example: Mg(II) has 2 positive charges, hence two electrons less. That means it has 0 valence electrons.
Take complete number of valence electrons, subtract the oxidation number and you get the number of valence electrons in the ion.
What else can I help you with?
Which number tells you the number of valence electrons?
The group number in the periodic table tells you the number of valence electrons for main group elements. The group number is the same as the number of valence electrons, except for transition metals.
How can the number of core electrons be determine from the periodic table?
By finding the atomic number minus the group number
What indicates the valence electrons on the periodic table?
Valence numbers, in relation to the periodic table, mean electrons. If you know the basics of chemistry, you know that electrons form pairs in the "shells" of an atom. The valence number refers to the number of electrons in the outermost "shell".
What re valence electrons?
Valence electrons are: In chemistry, those electrons found in orbits farthest from the nucleus of the atom. These electrons determine the way in which the atom will combine with other atoms, and thus determine its chemical properties.
How do you find valency of an element?
The number of electrons in the outermost energy shell is usually used in finding the valency of a given element. For instance elements that have two electrons in the outermost energy shell have valency 2.
Does the valence electrons equal the number of protons?
No, the number of valence electrons does not necessarily equal the number of protons in an atom. The number of valence electrons is determined by the group number of the element in the periodic table, while the number of protons is the atomic number of the element.
What is the relationship between the number of valence electrons and conductivity of a given element?
I suppose that a relation doesn't exist.
What is the relationship between the number of valence electrons and the conductivity of a given element?
The number of valence electrons in an element affects its conductivity by influencing how easily electrons can move through the material. Elements with more valence electrons have higher conductivity because they have more free electrons available for conduction. In contrast, elements with fewer valence electrons have lower conductivity as the movement of electrons is more restricted.
The Roman numeral at the top of a column on the periodic table indicates the number of?
The Roman numeral at the top of a column on the periodic table indicates the number of valence electrons an element in that column has. Valence electrons are the electrons in the outermost shell of an atom and are involved in chemical bonding. Group IA elements have 1 valence electron, Group IIA elements have 2 valence electrons, and so on.
Which number tells you the number of valence electrons?
The group number in the periodic table tells you the number of valence electrons for main group elements. The group number is the same as the number of valence electrons, except for transition metals.
What are the properties of a verical column of the periodic table?
The element in a given vertical column (or groups) have the same number of valence electrons and hence have similar properties.
How can the number of core electrons be determine from the periodic table?
By finding the atomic number minus the group number
What indicates the valence electrons on the periodic table?
Valence numbers, in relation to the periodic table, mean electrons. If you know the basics of chemistry, you know that electrons form pairs in the "shells" of an atom. The valence number refers to the number of electrons in the outermost "shell".
What re valence electrons?
Valence electrons are: In chemistry, those electrons found in orbits farthest from the nucleus of the atom. These electrons determine the way in which the atom will combine with other atoms, and thus determine its chemical properties.
What is the relationship between the number of valence electrons and the conductivity of the given elements?
Less valence electrons (1 to 3) in the outermost shell of an atom usually means a good conductor. (silver, cooper, gold). 5 t0 8 valence electrons are found in glass, rubber, ceramic, plastic, non-conductors.
How do you find valency of an element?
The number of electrons in the outermost energy shell is usually used in finding the valency of a given element. For instance elements that have two electrons in the outermost energy shell have valency 2.
What are dot diagrams used to represent?
Outer electrons
