(A) Electron (X)
(B) proton (✔)
(C) Neutron (X)
(D) positron (X)
Answer: The position of an elements in the periodic Table is determined by its proton number.
(A) Electron (X)
(B) proton (✔)
(C) Neutron (X)
(D) positron (X)
Answer: The position of an elements in the periodic Table is determined by its proton number.
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