Advertisements
Advertisements
Question
Define: Elements-
Advertisements
Solution
Elements : An element is the basic form of matter that cannot be broken down into simpler substances by chemical reactions.
APPEARS IN
RELATED QUESTIONS
Select elements and compounds from the following list: Iron, plaster of paris, chalk, common salt, copper, aluminium, calcium oxide, cane sugar, carbon, silica, sodium sulphate, uranium, potassium carbonate, silver, carbon dioxide.
Out of ozone, phosphorus, sulphur and krypton, the elements having the lowest and highest atomicities are respectively :
Write the full form of IUPAC. Name the elements represented by the following symbols:
Au, Pb, Sn, Hg
Give the symbol of the following element:
Oxygen
State the type of element for the following:
Sodium
Write the radical of the following valency:
Phosphate
Write the chemical formula of the following:
calcium sulphide
State the valency of the following metallic element and write symbol with the valency
Zinc
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Sulphate
Name the elements with the following symbols.
- Na
- W
- Ba
- Al
- U
