2 Na + H₂O → 2 NaOH + H₂ Question: How many grams of H₂ are produced if 120 g available?
A. 5.2 H2

B. 2.6 g H2

C. 45 g H2

D. 690 g H2

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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false

because it does not have the potential to be entirely used up

elements make up everything, and they combine to make compounds.

the answer is c

i think its 100.

hope this !