An atom of chlorine has _______ protons.
Atom A has a mass number 209 and atomic number 82.
Atom B has a mass number 209 and atomic number 83.
(i) How many protons atom A has ?
(ii) How many protons atom B has ?
(iii) Are atoms A and B isotopes of the same element ?
(a) an atom has equal number of electrons and protons
(b) an atom has equal number of electrons and neutrons
(c) an atom has equal number of protons and neutrons
(d) an atom has equal number of electrons, protons and neutrons
An atom has mass number A and atomic number Z.
How many protons are present in the nucleus?
For chlorine, Z = 17, A = 35. Give the number of protons, electrons and neutrons in
(i) chlorine atom (ii) chloride ion.
In chlorine atom (Cl),
Number of protons (Z) = 17
Number of neutrons = A — Z = 35 — 17 = 18