Isotopic, Isobaric and Isoneutronic

11.Two atoms are called isotopes if
 
A. they have the same neutron number but different masses
 
B. They have the same atomic number but different atomic number
 
C. The product of the number of protons and neutrons in them is the same, but the number of protons is different
 
D. They have the same number of neutrons, but different modes of radioactive moment
 
Option”B” is correct
12.The difference between isotopes of an element is due to the presence of different numbers of
 
A. Proton
 
B. neutrons
 
C. electron
 
D. photon
 
Option”B” is correct
13.An isotope of a nucleus of an atom is a nucleus in which
 
A. Same number of neutrons, but different number of protons
 
B. The number of protons is the same but the number of neutrons is different
 
C. the number of protons and neutrons is the same
 
D. The number of protons and neutrons is different
 
Option”B” is correct
14.Due to which properties the isotopes of an element differ
 
A. neutron and proton numbers
 
B. neutron atomic number
 
C. Proton and Electron Number
 
D. atomic mass and atomic number
 
Option”A” is correct
15.The number of isotopes of hydrogen is
 
A. 2
 
B. 3
 
C. 4
 
D. 5
 
Option”B” is correct
16.Which of the following is not an isotope of hydrogen
 
A. protium
 
B. deuterium
 
C. tritium
 
D. transium
 
Option”D” is correct
17.The radioactive isotope of hydrogen is called
 
A. deuterium
 
B. protium
 
C. radium
 
D. tritium
 
Option”D” is correct
18.What are ₈O¹⁶, ₈O¹⁷ and O¹⁸ called?
 
A. isotopes
 
B. constituents
 
C. equal pressure
 
D. sumneutronic
 
Option”A” is correct
19.What is ₁₇CI³⁵ and ₁₇CI³⁷?
 
A. isomer
 
B. isotopes
 
C. commemorative
 
D. burdensome
 
Option”B” is correct
20.The largest number of isotopes are found in
 
A. uranium
 
B. hydrogen
 
C. polonium
 
D. lead
 
Option”C” is correct

en_GBEnglish