The answer is (1) 90 Sr. The definition of beta decay is that a type of radioactive decay in which one proton will change to one neutron and release one electron inside the nucleus. And 90Sr is a common beta emitter.
Answer:
C2H8N
Explanation:
it wont change since there is no common factor between the 2:8:1 which will give us a whole number so it stays the same
Molar mass O₂ = 16 x 2 = 32.0 g/mol
1 mol O₂--------------------------- 32.0 g
30.5 moles O₂-------------------- ? ( mass O₂)
mass O₂ = ( 30.5 ) x 32.0 / 1
mass O₂ = 976.0 / 1
= 976.0 grams of O₂
hope this helps!
Explanation:
A source Emits a sound and is represented by the red dot in this map. Four people are located and the source and the circle represent the sound wave.
As the source moves west which person hears the highest pitch
person B
The measurement that is expressed to 3 significant figures would be C. 7.30 X 10^-7.