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Why noble gas show variable oxidation state?
because they are stable
A positive or negative number that is assigned to an element to show its combining ability in a compound is?
Oxidation Number
What do half-reactions show?
Type your answer here... The number of electrons transferred in the reaction
Why transition elements show variable valency?
Transition elements contain 2 outermost shells incompleted including the valence shell. But when it reacts with other, it shares,gives or accepts elctrons from its inner shells.
Where can you find the element chromium?
its very reactive as it show variable valences so you havw to order it though a school
Why do transition metals have variable oxidation states?
Transition metals can move electrons between the outer shell and the d d orbital. For example, copper can either lose its 2 s electrons or move one of those s electrons into d orbital, which is one electron short of being full.
Why noble gas show variable oxidation state?
because they are stable
A positive or negative number that is assigned to an element to show its combining ability in a compound is?
Oxidation Number
What do half-reactions show?
Type your answer here... The number of electrons transferred in the reaction
An is a positive or negative number assigned to an element to show its combining ability in a compound?
oxidation number
Oxidation numbers for five common transition elements?
Transition elements usually have more than one oxidation number. In different oxidation numbers, the ions show different colors. Some of the ranges: Cu from +1 to +2; Cr from +2 to +6; Ni from +2 to +3; Co from +2 to +3 and Mn from +2 to +7.
Why do nonmetals have a negative oxidation number?
non metals accept electrons. Hence they show a negative oxidation number (negative denotes that the element accepts electrons)
Why transition elements show variable valency?
Transition elements contain 2 outermost shells incompleted including the valence shell. But when it reacts with other, it shares,gives or accepts elctrons from its inner shells.
Which metal has an oxidation number of 3?
Aluminium, Gallium,Indium, Thallium show O.S. of +3. Since Ununtrium is also placed in group 13, it might show O.S of +3 as well. In 3d transition series, Scandium,Titanium, Vanadium,Chromium,Manganese,Iron,Cobalt,Nickel show the oxidation state of three. In 4d transition series, Yttrium, Zirconium,Niobium, Molybdenum,Technetium,Ruthenium, Rhodium, Silver. In 5d transition series, Hafnium,Tantalum,Tungsten, Rhenium,Osmium,Iridium, Gold,Platinum show O.S. of +3. Also, All the Lanthanides elements show oxidation state of +3. Among the Actinides, Actinium, Protactinium, Uranium,Neptunium,Plutonium,Americium,Curium, Berkelium, Californium,Einsteinium,Fermium,Mendelevium,Nobelium and Lawrencium show oxidation state of +3. Apart from these, Meitnerium is also predicted to show O.S. of +3 .
Do elements in the s or p block generally have one common oxidation number?
No, this is not the case. Firstly, a simple substance (pure element) always has oxidation number 0. Then there is the fact that when combining with an element more electronegative than the element in question it will tend to have a positive oxidation number while if the element is more electropositive it will tend to have a negative oxidation number.Nitrogen is a good example:-3 in NH3-2 in N2H4-1 in NH2OH0 in N2+1 in N2O+2 in NO+3 in NaNO2+4 in NO2+5 in HNO3Other elements are not as versatile as nitrogen, but a typical non-metal will show all odd or even oxidation numbers over a range of 8 units, as well as zero, while a typical metal will show all odd or even oxidation numbers between 0 and its valence.The elements that do show only one common oxidation number (other than zero) are all of the s-block elements and fluorine and oxygen.
What do control groups and experimental groups not have in common?
The variable being tested. The difference between the two groups after the experiment will ideally show some effect by the variable element.
Where can you find the element chromium?
its very reactive as it show variable valences so you havw to order it though a school
