Question

35/17cl and 37/17cl are called

Answer 1

Explanation:

all atoms of an element have the same number of protons, individual atoms may have different numbers of neutrons. These differing atoms are called isotopes. ... The symbols for the two naturally occurring isotopes of chlorine are written as follows: 3517Cl and 3717Cl.

Answer 2

$^{35} _{17} Cl$ AND $^{37} _{17} Cl$ ARE ISOTOPES AS THEY HAVE SAME ATOMIC NUMBER.

Explanation:

• Isotopes are the chemical compounds which have same atomic number but different atomic mass.
• That is same number of protons but different number of neutrons.
• Elements like chloride occur in the form of isotopes in nature.
• The isotopes of chlorine has an atomic mass of 35u and 37u.
• The average mass of chlorine is taken as 35.5u.
• Like chlorine, carbon also has isotopes; $^{12}C, ^{13}C,^{14}C$.
• Therefore, $^{35} _{17} Cl$ and $^{37} _{17} Cl$ are isotopes.