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प्रश्न
What are the elements.
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उत्तर
“Elements are pure substances made up of one kind of atoms and cannot be broken down into simpler substances.” 118 elements are there.
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संबंधित प्रश्न
Fill in the following blank with suitable word:
Group 18 elements are called ...............
Give two example of group 1 elements.
State how the valency of elements varies in a period of the periodic table?
State the term
The tabular arrangement of elements in horizontal rows and vertical columns _________
What would be the correct order if Zn, Fe, Al and Cu are arranged in increasing order of reactivity?
Give the symbol and valency of the following element and radical.
Sulphur [Sulphide]
State what the group number in the Modern Periodic Table signifies. Give a reason why elements in the same group, have similar valency and similar chemical properties.
Distinguish between:
s-block - p-block
The amount of energy released when one or more electrons is added to the neutral atom is ______
Spot the error:
The elements of group 13 are called the carbon family.
