The number of protons, neutrons and electrons in particles A to E are given below :
Particle Protons Neutrons Electrons
A 17 18 17
B 3 4 2
C 18 22 18
D 17 20 17
E 9 10 10
Giving reasons, find a pair of isotopes from the above particles.

Academic Chemistry NCERT Class 9

A and D are isotopes as they have the same number of protons but different number of neutrons.

Updated on: 10-Oct-2022

76 Views

Related Articles
Name the particle which has 18 electrons, 18 neutrons and 17 protons in it.
A particle X has 17 protons, 18 neutrons and 18 electrons. This particle is most likely to be :(a) a cation (b) an anion(c) a molecule (d) a compound
The nucleons are(a) protons and electrons(b) neutrons and electrons(c) protons and neutrons (d) none of these.
What is the name of a particle which contains 10 electrons, 11 protons and 12 neutrons?
In \( { }_{17}^{35} C l \) and \( { }_{17}^{37} C l, \) which of the following is false?1) Both have 17 protons.2) Both have 17 electrons.3) Both have 18 neutrons.4) Both show same chemical properties.
Explain the discovery of electrons, protons, and neutrons.
Compare the properties of electrons, protons, and neutrons.
The isotopes of an element contain :(a) same number of neutrons but different number of protons(b) same number of neutrons but different number of electrons(c) different number of protons as well as different number of neutrons(d) different number of neutrons but same number of protons
A particle P has 18 electrons, 20 neutrons and 19 protons. This particle must be :(a) a molecule (b) a binary compound (c) an anion (d) a cation
For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.
Which of the following statement is always correct?(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
State the location of electrons, protons and neutrons in an atom.
The atomic number of sodium is 11 and its mass number is 23. It has(a) 11 neutrons and 12 protons (b) 12 protons and 11 electrons(c) 11 electrons and 12 neutrons (d) 12 electrons and 11 neutrons.
Rutherford's alpha particle scattering experiment led to the discovery of :(a) Nucleus (b) Electrons (c) Protons (d) Neutrons
What is the relationship between an atom containing 11 protons, 11 electrons and 11 neutrons, and another atom containing 11 protons, 11 electrons and 12 neutrons?

Kickstart Your Career

Get certified by completing the course

Advertisements