Cationic molecular ions are abundant than anionic molecular ions?
(a) More
(b) Less
(c) Neither ore or less
(d) None of them
Molecular ions can be generated by passing through gas?
(a) High energy electrons
(b) Alpha particles
(c) Helium nuclei
(d) All of them
Relative atomic mass of hydrogen is?
(a) 1.00794 amu
(b) 1.00795 amu
(c) 1.00796 amu
(d) 1.00797 amu
Isotopes are different kinds of atoms of same element having?
(a) Same atomic number
(b) Different mass number
(c) Both a and b
(d) None of them
Isotopes of element possess same?
(a) Physical properties
(b) Chemical properties
(c) Both a and b
(d) None of them
Phenomenon of isotopy was first discovered by?
(a) Democritus
(b) Dalton
(c) Berzelius
(d) Soddy
Oxygen has______________ isotopes
(a) 2
(b) 3
(c) 4
(d) 5
Nickel has ______________ isotopes?
(a) 3
(b) 4
(c) 5
(d) 6
Calcium has_______________ isotopes?
(a) 3
(b) 4
(c) 5
(d) 6
Paladium has __________ isotopes?
(a) 6
(b) 8
(c) 10
(d) 12
How many isotopes of stanum (tin)are there?
(a) 7
(b) 9
(c) 11
(d) 13
Tritium has_________ neutrons?
(a) 1
(b) 2
(c) 3
(d) 4
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