The answer is around 4.12x10^23 molecules
Answer
<h2>If no of proton is 3</h2><h2 /><h2>Then atomic no. Is3</h2><h2 /><h2>Therefore it is Li</h2><h2 /><h2>Mass no. Of li = 7</h2>
Explanation:
<u>HOPE</u><u> IT</u><u> HELPS</u>
Answer:
The symbol for an atom can be written to show its mass number at the top, and its atomic number at the bottom. To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number: number of protons = atomic number. number of electrons = atomic number.
Answer:
V= 8.235 ml
Explanation:
The man above me copied me from the comments
I did it >:C
The formula is:
frequency * h (Planck's constant) = Energy
So, to find frequency you need just divide energy by the constant:
frequency = (8 * 10^-15 J) / (6.63 * 10^-34 J*s) = 1.2 * 10^19 1/s or 1.2 * 10^19 Hz
