Basic Concepts - 6
1.
Atomic mass of an element depends upon the number of possible isotopes and their _________.
a) Isotopes of that element
b) m/e
c) Relative abundance
d) Natural abundance
2.
The analysis which involve detection of elements present in the compound is called.__________
a) Multiple of 4
b) Qualitative analysis
c) As,F,I,Au
d) Isotopes of that element
3.
At present above _________ different Isotopes occur in nature.
a) 281
b) 283
c) 280
d) 285
4.
About _______ unstable radio active Isotopes have been produced through artificial disintegration.
a) 100
b) 200
c) 300
d) 400
5.
__________ is a mono isotopic element.
a) odd atomic No.
b) As,F,I,Au
c) Multiple of 4
d) mass spectrometer
6.
Isotopes whose mass number are _________ are particularly abundant.
a) Multiple of 4
b) mass spectrometer
c) Natural abundance
d) odd atomic No
7.
The elements with _________ possess more than two stable Isotopes.
a) m/e
b) Natural abundance
c) odd atomic No.
d) Multiple of 4
8.
Out of 280 Isotopes that occur in nature __________ have even mass number and even atomic number.
a) 155
b) 156
c) 153
d) 154
9.
_________ is an instrument which is used to measure the exact masses of different isotopes of an element.
a) Relative abundance
b) m/e
c) mass spectrometer
d) Natural abundance
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