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प्रश्न
Define the following term with an example.
Non-metal
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उत्तर
Non-Metal: Non-metal is an element that doesn’t have the characteristics of metal including, (i.e.) ability to conduct heat or electricity luster or flexibility.
Ex. Carbon Iodine, Sulphur.
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संबंधित प्रश्न
Define:- Atom
Define:- Radicals
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Write the names of the elements present in the:-
Sodium hydroxide
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Name the particle or particles you would expect to find in :
The orbit of an atom
Fill in the blank
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Fill in the blank
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One nm is equal to :
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(a) What is the atomic number of the element?
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(c) What type of ion (if any) will be formed by an atom of element Z? Why?
(d) What is special about the outermost electron shell of the atom of this element?
(e) Give the name and symbol of element Z.
(f) Name the group of elements to which Z belongs.
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| Datum | To deduce |
| \[\ce{_11^23Na}\] | Neutron number |
| \[\ce{_6^14C}\] | Mass number |
| \[\ce{_17^37 Cl}\] | Proton number |
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In all atoms of an element
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Dalton’s atomic theory successfully explained
(i) Law of conservation of mass
(ii) Law of constant composition
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(iv) Law of multiple proportions
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______ is a substance that is made up of three oxygen atoms chemically combined.
