The inventor of the cotton gin in Eli Whitney
4.2 × 10²² atoms Al × (1 mol Al / 6.022 × 10²³) = moles Al
Last one: fraction 1 mole Al over 6.022 × 10²³ atoms Al
1 mole ------------ 6.02x10²³ molecules
? moles ----------- 9.0345x10²⁴ molecules
( 9.0345x10²⁴) x 1 / 6.02x10²³ =
9.0345x10²⁴ / 6.02x10²³ => 15.007 moles
Answer is: They orbit the central nucleus in discrete paths.
According to the Bohr model of the atom:
1. Electrons orbit the nucleus in orbits that have a set size and energy.
2. Energy levels of electrons are discrete (certain discrete values of energy).
3. Electrons can jump from one energy level to another, absorbing or emitting electromagnetic radiation with a frequency ν (energy difference of the levels).
The correct answer is - Jerusalem
