15. Give one word for the following.
iii. The scientific representation of an atom of an element.
Hence, the scientific representation of an atom of an element is called a symbol.
The number of electrons in the atom of an element X is 15 and the number of neutrons is 16. Which of the following is the correct representation of an atom of this element?
Give one word answer for the following:
The number of protons present in the nucleus of an atom.
(a) X1531
(b) X1631
(c) X1516
(d) X1615
Give one word for the following statement:
Number of atoms present in one molecule of an element or a compound.