NEET Chemistry
Number Of Electron Proton Neutron
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Consistency: 5%
Weightage: 1 / 20 Yrs
High-Yield Trend
1
2007 Questions 1 MCQs
01
PYQ 2007
easy
chemistry ID: neet-200
An element X has the following isotopic composition:
200X: 90%
199X: 8.0%
202X: 2.0%
The weighted average atomic mass of the naturally-occurring element X is closest to:
1. 200 amu
2. 201 amu
3. 202 amu
4. 199 amu
1
(1)
2
(2)
3
(3)
4
(4)