How did the Heisenberg uncertainty principle contribute to the idea that electrons occupy "clouds" or "orbitals"? Because the exact position of the electron is not known,it must be assumed that the electron takes up the entire space in an orbital.
Answer:
Option c. is correct
Explanation:
A chemical bond enables the formation of chemical compounds depending on the nature of the participating atoms like atoms, ions or molecules.
These are formed as a result of the force of attraction between oppositely charged ions.
It is formed by the overlapping of the atomic orbitals of the two atoms.
When the length of a chemical bond is short an electron is held tighter and the bond is stronger
Answer:
2.69 x 10²³ atoms
Explanation:
Given parameters:
Volume of sea water = 2.06mL
number of moles of gold = 0.446moles
unknown:
Number of atoms in the sea water
Solution:
The mole is a convenient unit of measuring quantities of particles. In a mole we have 6.02 x 10²³particles.
The mole can be defined as the amount of a substance contained in Avogadro's number of particles which is 6.02 x 10²³particles.
Here, the particles we want to determine is the number of atoms:
Number of atoms is given as:
Number of gold atoms = number of moles of gold x 6.02 x 10²³
Number of gold atoms = 0.446 x 6.02 x 10²³ = 2.69 x 10²³ atoms
