C-12 has 6 protons. how many neutrons does c-13 have? select one:
a. 7
b. 6
c. 13
d. 19

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Is 9 correct? and can someone me with 10? it’s due tomorrow, you