allysmith143 allysmith143
  • 14-04-2017
  • Chemistry
contestada

What is the mass number of 207Pb ? A: 289 B: 207 C: 125 D: 82

Relax

Respuesta :

Аноним Аноним
  • 14-04-2017
207 is the mass number. 82 would be the atomic number
Answer Link

Otras preguntas

a force did 80 j of work on an object in 4 m how big was the force
47 is 0.5% of what number
7% is 35 of what number
Which pathway represents the flow of electrons during photosynthesis? A. H2O > Photosystem I > Photosystem II B. O2 > ADP > Calvin Cycle C. Photosys
who ruled many of the caribbean islands until recently
In an essay arguing that music education should be required in elementary school, how would the author most likely include interviews with music teachers? As b
Which statement is true about this sentence: "Few Americans speak fluent French"? A. The verb in this sentence could be an adjective. B. There are
In a periodic table, dots around an elements symbol indicate the number of valence electrons in an atom ? True Or False
while at the music store, drew bought 5 CDs, all at the same price.he tax on his purchase was $6, and the total was $61. what was the price of each CD?
What is 1,000 raised to the 4th power ?