Isobars are atoms of different chemical elements that have ______.
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Mass number is always equal to ______.
Find the similarity in the following :
Carbon, Silicon, Boron, Arsenic
Among the given nutrients, milk is a poor source of
The movement of water molecules through the plasma membrane is called ______.
The vast amount of sea weeds present in oceans may produce an endless source of
____ are atoms/molecules/ions containing the same number of electrons.
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