Question

There are two species represented as 35Cl and 37Cl. Which of the following statement is correct regarding these species ? (a) they have different chemical properties
(b) their physical properties are the same
(c) they have the same number of protons
(d) they are isobars of the same element

Answer 1

SAME NUMBER OF PROTONS

Explanation:

Isotopes are the Elements with SAME Atomic Number but Different Mass Number.

Since we know that Atomic number refers to Proton number.

So, As such we can see into the question that the atoms of chlorine with different mass number, 35 and 37 have been there.

$Cl^{35}_{17}$ and $Cl^{37}_{17}$

which means the (iii) part of the question-

they have same number of protons