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The of an element are formed by the co...

The _____ of an element are formed by the combination of two or more atoms of the same element.

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Oxidation number is the charge which an atom of an element has in its ion or appears to have when present in the combined state. It is also called oxidation state. Oxidation number of any atom in the elementary state is zero. Oxidation number of a monoatomic ion is equal to the charge on it. In compounds of metals with non metals, metals have positive oxidation number while non metals have negative oxidation numbers. In compounds of two difference elements, the more electronegative element has negative oxidation number whereas the other has positive oxidation number. In complex ions, the sum of the oxidation number of all the atoms is equal to the charge on the ion. If a compound contains two or more atoms of the same element, they may have same or different oxidation states according as their chemical bonding is same or different. The oxidation state of the most electronegative element in the products of the reaction between BaO_(2) and H_(2)SO_(4) are

Oxidation number is the charge which an atom of an element has in its ion or appears to have when present in the combined state. It is also called oxidation state. Oxidation number of any atom in the elementary state is zero. Oxidation number of a monoatomic ion is equal to the charge on it. In compounds of metals with non metals, metals have positive oxidation number while non metals have negative oxidation numbers. In compounds of two difference elements, the more electronegative element has negative oxidation number whereas the other has positive oxidation number. In complex ions, the sum of the oxidation number of all the atoms is equal to the charge on the ion. If a compound contains two or more atoms of the same element, they may have same or different oxidation states according as their chemical bonding is same or different. A compound of Xe and F is found to have 53.3% Xe (atomic weight =133). Oxidation number of Xe in this compound is

Predict the formulae of the stable binary compounds that would be formed by the combination of the following pairs of elements. Element 71 and fluorine.

Explain why An ionic bond cannot be formed between theatoms of the same element?

Isotopes of an element are placed at the same place in the long form of the periodic table.

Catenation is the ability of an atom to form bonds with other atoms of the same element . It is exhibited by both carbon and silicon. Compare the ability of catenation of the two elements .Give reasons.

If the atomic number of an element X is 17, then what will be the atomic number of the element lying in the same group as that of X but in the fifth period?

Elements A, B and C have atomic numbers 9, 20 and 10 respectively. Write down the formula of the compound formed by two of the above elements.

If two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element, are in whole number ratio. (a) Is this statement true? (b) It yes, according to which law? (c) Give one example related to this law.

The Mw of a oxide of an element is 44. The Ew of the element is 14. The atomic weight of the element is