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प्रश्न
Name the non-metals in the first twenty elements.
उत्तर
C, N, O, F, Ne, P, S, Cl, Ar, H and He.
संबंधित प्रश्न
How many periods and groups are there in the long form of periodic table?
On the basis of electronic configuration, how will you identify the first element of a period?
State the term
The tabular arrangement of elements in horizontal rows and vertical columns _________
Name two elements in each case:
Actinides
State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids?
How will the tendency to gain electrons change as we go from left to right across a period? Why?
Give the chemical formula of calcium phosphate
What are the elements.
If an element X is placed in group 14, what will be the formula and the nature of bonding of its chloride?
An element belonging to 3d series of modern periodic table has spin magnetic moment = 5.92 B.M. in +3 oxidation state. The atomic number of elements are ______.
