A low-pressure mercury-vapor lamp has a characteristic emission line at 253 nm. Knowing that in one second this lamp is putting out 11.8 Joules of light energy, how many mercury atoms emit a photon during this one second of operation?1. 5.25 x 1020 atoms 2. 7.11 x 1024 atoms 3. 1.50 x 1019 atoms 4. 1.08 x 1017 atoms 5. 7.86 x 10â19 atoms 6. 4.73 x 105 atoms

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

i think its 100

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