Chemistry Fill in the blanks Set 23

Chemistry Fill in the blanks Set 23

1. The first element in the periodic table is Hydrogen.
 
2. Protium is the common formd of hydrogen.
 
3. The half-life of tritium is  12.3 years
 
4. Deuterium reacts with ammonia to form Deuteroammonia.
 
5. The rare isotope of hydrogen is Tritium 1H3.
 
6. Heavy water (or) D2O is employed in nuclear reactor to slow down the speed of fast moving neutrons.
 
7. The magnetic moment of para hydrogen is Zero.
 
8. Deuterium with salt and other compounds forms deutrates.
 
9. Hydrogen peroxide was first prepared by L.J. Thenard in 1813.
 
10. Pure H2O2 is unstable.