温州医科大学
第一章单元测试
- What is the relationship between 123I and 124I?( )
- A nuclide has the same N , Z and energy state .( )
- WhenTc m decay into Tc, the mass is changed. ( )
- Atomic nuclei are spontaneously affected by external influences ,such as temperature, pressure, electromagnetic fields.( )
which is not true for Gamma decay?( )
A:Nuclide
B:Isotope
C:Isomer
D:Element
答案:Isotope
A:对 B:错
答案:对
A:错 B:对
答案:错
A:错 B:对
答案:错
A:The atomic number is changed.
B:99mTc decays into 99Tc is a type of gamma decay.
C:It is a type of electromagnetic radiation.
D:The mass number is not changed.
答案:The atomic number is changed.
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